About Kristin Huff

Kristin deviated from the family flock by attending Indiana University, earning an English degree. She worked as an editor and writer in Colorado and Michigan before the siren call of Blackstone brought her back to Indiana. Kristin started at Blackstone in 2002 and has since learned to love the intoxicating world of oil analysis. When she’s not working on the website, creating newsletters, doing HR stuff, or writing reports, Kristin enjoys running, swimming, gardening, and working on visiting all 50 states with her husband and kids.

Luke

Luke is our senior-analyst-turned quality control manager, motorcycle mechanic, and all around great guy. Despite the picture, he doesn’t always transport children in a wheelbarrow. That alone is all you really need to know about him, but wait, there’s more! In his free time Luke trains Arabian horses, consults with foreign dignitaries on the value of the yen, practices reiki, applies for patents in nuclear energy, and snowboards. Some or all of this may be true about Luke; you can decide how much. Note to potential employees: this is what happens when you can’t come up with anything for your website description.

By |2024-01-23T14:13:36-05:00January 19, 2024|Analyst, Jack of All Trades, Lab, People|Comments Off on Luke

Samir

We have never known anyone who could supply Marines in the desert with water, but that’s exactly what Samir did during his time stationed in Iraq as a Marine. A Gulf War veteran, Sgt. Kharbas is also a computer crackerjack, mechanic, father, and oil analysis guru. Having worked on cars for years, Samir puts his mechanical expertise to good use crafting oil analysis reports and discussing engines with all the people who want to chat. And there are a lot of you. Samir spends his free time hunting elk and moose in Montana, having relocated there from the great state of Indiana with his partner and kids a few years back.

By |2024-01-23T14:13:44-05:00January 19, 2024|Analyst, People|Comments Off on Samir

Travis

Travis is a man of many talents. Not only is he a coder and word-crafter of the highest order, he can take apart and reassemble engines and transmissions with ease. When he’s not coding or talking engines with Blackstone’s clientele, Travis has been known to restart hearts and rescue accident victims as an EMT, which makes him handy to have around when cars crash into our building (editor’s note: this actually happened — twice). He also can bend steel with his bare hands, and he once wrestled a grizzly bear to the ground and ate his ear. Note: The actual Travis may vary some from that last part.

By |2024-01-23T14:13:54-05:00January 19, 2024|Analyst, Jack of All Trades, People|Comments Off on Travis

Amanda

Amanda is a senior analyst. She is also an instrument-rated private pilot working on her flight instructor certification, a certified steak competition judge, crews on a hot air balloon team, plays the bassoon, and, according to her Spotify account, listens to more Beatles music than 99% of other Spotify users. Having grown up in Wisconsin, Amanda loves the Green Bay Packers, eating fresh cheese curds, and she once ran over a cow in a Saturn Ion.

By |2024-01-23T14:14:02-05:00January 19, 2024|Analyst, People|Comments Off on Amanda

Erik

Erik took to Blackstone like a Labrador takes to the water. Erik spends his days in the lab improving processes, setting up new machines, and building things. When he’s not doing his yearly bluegrass thing at Skunk Fest in South Carolina, Erik has been known to spend his free time tearing apart engines and fixing up his house for his wife and three kids. That’s our kind of guy.

By |2024-01-23T14:14:12-05:00January 19, 2024|Jack of All Trades, People|Comments Off on Erik

Kristin

Kristin deviated from the family flock by attending Indiana University, earning an English degree. She worked as an editor and writer in Colorado and Michigan before the siren call of Blackstone brought her back to Indiana. Kristin started at Blackstone in 2002 and has since learned to love the intoxicating world of oil analysis. When she’s not working on the website, creating newsletters, overseeing HR, or writing reports, Kristin enjoys running, swimming, and lifting weights to make her back stop hurting. She set a goal of — and succeeded in — visiting all 50 states with her husband and kids before the kids graduated from high school. She highly recommends Alaska.

By |2024-01-23T14:14:25-05:00January 16, 2024|Analyst, Jack of All Trades, People|Comments Off on Kristin

Ryan

Ryan started at Blackstone in 1997 after graduating from Purdue University with a degree in mechanical engineering. Ryan is the President of Blackstone Laboratories, and he’s responsible for writing and maintaining Blackstone’s software program, overseeing the lab, writing reports, and a million other things that need to be done in a business.

When he’s not kicking ass in the lab or writing code, Ryan enjoys putting his pilot’s license to good use, working on his ’84 Chevy 3/4 ton, and cheering on his alma mater, Purdue University. As an experiment, Ryan ran Aeroshell W65 — an oil with no zinc or phosphorus in it — in his Chevy to determine if the hype over ZDDP (zinc dithiophosphate) is all that or not, figuring if the experiment ruined his engine, well, he’s rebuilt it before. (Spoiler alert: The engine was fine.)

By |2024-01-26T10:22:29-05:00January 16, 2024|Analyst, Jack of All Trades, Lab, People|Comments Off on Ryan

Jim Stark

Jim Stark passed away peacefully at his home in Ossian, Indiana on Nov. 20, 2015. He was 73.

Jim was an inventor, entrepreneur, pilot, musician, writer, workshop tinkerer, mechanic, and an all-around interesting guy.

He enjoyed happy hour (three-beer limit unless scotch was available), playing guitar and the ukulele, traveling and camping with his wife Kathy, passionately rooting for Purdue, hot tubbing, writing stories, John Prine music, and checking himself out of the hospital. Jim and Kathy played music wherever they went on their travels across the country. Jim founded Blackstone Laboratories back in 1985, a successful company that is still going strong today. He was building his own airplane – a Van’s RV12 – just before he died.

Jim survived a tour in Vietnam, crashing an airplane, two heart attacks and two heart surgeries, jumping out of an airplane (barely) when he was 70, and the doctors in Indianapolis before lung cancer got him in the end.

His spirit is among the stars, and he will be greatly missed by all who loved him.

By |2024-01-23T14:14:44-05:00January 16, 2024|Jack of All Trades, People|Comments Off on Jim Stark

Do I Need to Worry?

Last month we got an email from John, who had some questions about his report. His F250 was showing trac­es of coolant in the oil, and lead­, from bearings, was elevated. He had the engine out of the truck pending repairs and wanted to know: how much lead is too much? Did he need to replace the bearings?

“Do I need to worry?” is a common question, and one there’s not one easy answer for. We’ve had people pull the bearings out of a Corvette when lead was only a few ppm above average and we said in the report, “You don’t need to do anything about this yet.” (For the record, that guy called us and said his bearings looked fine and was kind of honked off about it.) Oil report showing high, but steady, lead readings

We’ve had people with metals that are high all along, but not changing, and it never turns into a problem. And we’ve had people not pursue what appeared to be a problem, and re­gret it in the end (this is especially problematic when the engine is in an airplane).

So how do we decide what’s a problem and what’s not? It would be great if there was a magic number, but there’s not. We assess each en­gine individually, mainly focusing on these things:

  • How your sample com­pares to your trends
  • How your sample com­pares to average
  • The balance of metals to each other
  • Whether you’re using additives

Trends

Oil report showing a trend of steady lead, then an increase in leadIf you have them, trends are the most helpful thing we look at in determining your engine’s health. It takes three samples to get a good trend going (though we can often tell if something is amiss earlier than that).

All engines are different, as are their drivers, how they’re used, and where they are in the country. As such, it’s very helpful to sample a few oil changes in a row, at least at first, and have a baseline established for your specific engine. Consistency counts. If your engine is wearing a lot but it’s doing so steadily, it’s possible that the metal isn’t a problem. Problems tend to get worse over time – not remain stagnant.

Figure 1 is a good example where lead (a bearing metal) doesn’t appear to be a problem. That engine has more lead than average, but it’s consistent. Since the owner wasn’t having any problems, our recommendation was to just watch lead as time goes on. Side-by-side oil reports showing different wear metals for a Toyota 1.8L and an Oldsmobile 455 engine

But on the other hand, look at Figure 2. Lead read at just 12 ppm in this sample—that’s well within the average range, but we marked it because lead had always been much lower than this. If this had been his first report, we might have thought lead was okay. But since we know that lead is usually low, we told him the bearings are wearing more than they were and to watch for abnormalities like low oil pressure.

Universal averages

Of course, when you start sampling, you don’t have trends to rely on. So our second line of defense, when we’re looking at your numbers, is universal averages.

We have averages established for most of the engines out there, though we’re always adding to our database as new types of engines (and transmissions and generators and other machinery) are being made all the time. When you do your first sample, we’ll compare your metals to averages for your specific engine.

It’s helpful for us to know what kind of engine you have. Look at Figure 3, for example. This is a comparison between the Toyota 1.8L 1ZZ-FE (used in Corollas and Vibes), and the Oldsmobile 455 (used in older motorhomes and the Cutlass and Trans Am). Toyotas don’t wear much, whereas the Olds 455 makes a lot of metal.

Oil report for an armored vehicle in New York City, with consistently more metal than averageIf we don’t know what kind of engine you have, we might end up comparing your numbers to the wrong set of averages, or just a generic engine file. We can still tell if something is way out of line, but the more subtle differences between your engine and averages are harder to see.

Along those same lines, some vehicles come with many different engine options, so just telling us the year, make, and model of your vehicle isn’t always enough. The 2006 Silverado, for example, could have one of five different gas engines or the 6.6L diesel engine in it. We have different averages for each of those engine types. Take a look at Figure 4.  The metals are similar in those en­gines, but they’re different enough to matter when we’re determining if something is too high or not.

Generally speaking, we’ll mark a metal in bold when it’s twice average or more. But not always—there are also times when we don’t mark elevated metals, if we know something else is going on.

We test a fleet of ar­mored Sprinter vans that operate in New York City, for example. The vehicles are loaded up with armor and spend their entire lives idling and driving in unforgiving traffic conditions. It’s no surprise that the engines wear more than average. (See Figure 5.)

Balance of metals

We also look at the balance of metals relative to each other. In Figure 6, lead is not reading twice average but we marked it anyway. According to averages, lead and iron should be at about a 1:1 ratio. In this sample, the lead: iron ratio is more like 4:1. This bal­ance tells us the bearings are wearing more than the rest of the engine, and that can be a sign of trouble too. Oil report for a Mercedes Benz 3.0L with high, but steady, iron readings

Additives

Another factor to consider is the use of additives and/or leaded fuel. Lots of people use Restore, which has copper and lead in it, and although in that form those elements aren’t harmful, they do make your numbers read high.

Likewise, if you’re using leaded fuel, racing fuel or certain octane boosters, fuel blow-by will cause high lead readings. The highest lead reading we’ve seen in any BMW S65 engine was 1055 ppm. The rest of the metals looked great, though, and the customer had mentioned using an additive, so we were pretty sure the lead in his sample wasn’t a sign of an impending bearing failure.

How much metal is too much?

So how much metal is too much? In truth that num­ber is different for every engine. You already know that we take a lot of things into account in trying to answer that question. Usually we’ll call you to get more information if we’re not sure, and we’ll suggest giving it an oil change or two to see how trends shake out. If something is seriously out of line we can usual­ly tell, even if we don’t know your engine type or how you use it.

High lead in an oil report for a BMW engine known for bearing problems

We will say this, though: it’s pretty rare for a major mechanical problem to happen unexpectedly over­night. Most engines will give at least some warning before things go south, and that’s why you do analy­sis. Follow the trends to see what’s normal for your engine, and when deviations occur, you’re informed enough to make a good decision.

By |2024-09-19T10:07:41-04:00July 28, 2023|Articles, Gas/Diesel Engine, Marine|Comments Off on Do I Need to Worry?

The eBay Oils (Part 3)

Welcome back to the eBay Oils! If you missed the previous two installments, wherein we describe what we found in some old oils that Ryan bought on eBay, you can read them here and here.

HyVis 4 Winter

We’re going to kick this party off with an oil that I personally have never heard of: HyVis 4 Winter Motor Oil. The can looks very groovy and it has no zip code, so I’m placing it from the very early 1960s or late 1950s. It’s “Mileage Metered” and it has a picture of a medal with a ribbon on the can, so you know it’s good stuff. HyVis was apparently way ahead of the curve on extended oil use, because on the top of the can it says it’s good for 1,000 to 9,999 miles. Interestingly, the oil has zero additive in it (Figure 1). Or perhaps it’s got additive in it, just not any that we read. The grade is not listed on the can, but the viscosity came back as a light 20W. With the lack of additive it’s not surprising that the TBN read 0.0. It’s tempting to do an experiment and run this apparent mineral oil for 10,000 miles in the dead of winter, just to see what would happen. If you know of any guinea pigs, send them our way!

Amoco LDO 10W/40

Next up is a pair of old oils: Amoco and Texaco. These names remind me of gas stations we’d stop at on family vacations in the 1970s. Amoco (which he always pronounced Uh-muck-o) is the one that reminds me most of my Dad. Amoco gas stations were called Standard stations in some parts of the country, and I’ll always associate the blue, red, and white logo with long trips across the country in our green van with the velour bed and hanging beads. But Amoco did more than fill up gas tanks in the 70s–they also sold oil, and this “Long Distance” version is an SAE 10W/40. The additive package looks a lot like the Mobil Special oil we saw: heavy on phosphorus and zinc, lighter on calcium and magnesium (Figure 2). Just the right oil for a couple of bandana-wearing hippies traveling with two little kids from Indiana to Nova Scotia in 1976 in a green van with a sunset painted on the side. Ah, the ’70s.

Texaco Ursa ED 20-20W and Texaco Havoline Super Premium 10W/40

The Texaco Ursa ED oil is scant on advertising copy. They must have had their hands full designing this “Extra Duty” 20-20W oil instead. On the can they recommend this oil for everything you can think of except lawn mowers. It’s got a lot of additive in it (Figure 3), but the additives are configured more like what we’d expect out of a gear lube ¾ except with more calcium. Why the 20-20W and not just 20W? We’re not sure. Maybe it’s fancier. The viscosity read like what we see today out of a standard 5W/30. Texaco Havoline Super Premium 10W/40, on the other hand, looks a lot like one of today’s diesel-use oils in additives (Figure 4), with a normal 10W/40 viscosity.

Lucky Strike 20-20W

We knew Lucky Strike made cigarettes, but we had no idea there was an oil of the same name until Ryan found this can and bought it on eBay for $29.99. The can looks seriously old, with no information on it beyond the name, a picture of an oil derrick, and the words “One U.S. Quart.” A quick Google search revealed no real information¾just some old Lucky Strike Oil & Gas Company stock certificates from 1917. The oil probably isn’t quite that old, but it may very well be the oldest of all the cans we bought. They didn’t do a lot with additives back then, though we did turn up 125 ppm barium (Figure 5). Not a lot else was present in this 20-20W oil. Note that without any calcium or magnesium, the TBN read 0.0.

 

Union 76 20W/50

Union 76 20W/50 is clearly made for speed. You can tell because of the black-and-white checkers on the front. According to the lid, this oil was tested and certified by the national association for stock car auto racing. My friend Google tells me that stock car racing became popular back in the 1920s (when moonshiners were outrunning Johnny Law during Prohibition times), but this can is clearly not that old. Not only did they not make multi-viscosity oils that long ago, but the can comes from zip code 90017 so it has to be from 1963 or later. According to the can, it’s 100% parrafinic oil with selected additives, which our spectrometer reveals to be your standard line-up of calcium, phosphorus, and zinc (Figure 6). Look at that viscosity though¾it’s higher than we see in today’s 20W/50s.

Castrol R Racing

Who doesn’t love Castrol? Other oil companies, that’s who. But we like them all right, so we bought two old cans. One, with liquid tungsten, we reviewed in the first article in this series. The other appears to be much older: I’d place it from the 1940s or 1950s. Not only does this can have a high opinion of itself (“The Masterpiece in Oils!”), but they direct you how to ask for it at the store: “Do not ask for ‘XL’ or ‘XXL.’ Always state the full name.” Like modern oils, they stress the high quality of the oil with terms like “organo-metallic” that are meant impress those of us who aren’t in the oil business. I don’t know if I’d call this a masterpiece in oil work though: it looks like what we see out of ATFs these days as far as additives go (mostly phosphorus with a little zinc thrown in). Since the word “Racing” is stamped into the top of the can, the thick viscosity (like a 50W) makes sense (Figure 7).

Sinclair Dinolene 20-20W

I’ve always had a soft spot in my heart for Sinclair. The can has a picture of a dinosaur on it! This shit came from the ground, no doubt about it! Another 20-20W oil, the oil is light on advertising copy but heavy on additives. In fact, it looks a lot like recent versions of Shell’s Rotella 5W/40, except with a little less calcium. It’s much lighter than Shell’s 5W/40, though, with a viscosity reading like a 30W or a heavy 20W oil. Note the presence of lead (Figure 8). 

Amsoil Super Premium 10W/40

Until I started writing this article, I had no idea that Amsoil has been around since 1972. This particular sample came, like all the rest, from a can, so it has to be at least from the mid-’80s (which is when most companies switched to plastic bottles). Even 30+ years ago, Amsoil was pushing 25,000-mile oil changes, and the can even lists a comparison between this oil and regular old petroleum as far as engine temps, flashpoint, oxidation, and lubrication range (unsurprisingly, Amsoil wins in each category!). Modern Amsoil products tend to be heavy on additives and that was true back in the day as well (Figure 9). Just for fun, we compared this oil with a virgin sample of Amsoil 10W/40 that we ran in February 2012 and they look a lot alike. The only difference is in the older oil there’s less of everything: 500 ppm less calcium, and 100-200 ppm less phosphorus and zinc. They used magnesium in the older oil, while the TBN and viscosities were nearly identical.

Pennzoil Dex2 and Z-7 10W/40 

Pennzoil started as Penn’s Oil in 1913, and I have to admit, “Why the Liberty Bell?” was my most pressing question as I looked over these two old cans. Originally, Penn’s Oil came from an oil field in Pennsylvania and was christened with a Liberty Bell logo to remind users of its Pennsylvania roots. This can of ATF clearly has an earlier generation of logo on it, and Google informs me that Dexron II was introduced in 1972. This may very well have been the transmission oil that kept our green van chugging through the ’70s. There are a lot of different ATFs in stores today, though generally they have about the same additive configurations. This one is a little different in that it has more boron, magnesium, and zinc than most modern ATFs. The viscosity is right where we’d expect it to be though. Pennzoil’s 10W/40 oil can is flashy, a la the 1980s. It’s “The Motor Oil With Z-7” and although they don’t specify what that is, they do specify that “You need no extra oil additive.” So that’s reassuring. It’s rated SF-SC-CC, so I’d place it at about 25 years old. Maybe the magic of Z-7 is copper: that’s something we saw a lot of back in the day, when Blackstone was founded. Interestingly, magnesium is the dominant additive in this one, followed by zinc, phosphorus, copper, and boron (Figure 10). The flashpoint was lower than what we see today from 10W/40s.

Renuzit

At last, we finish our tour of ancient oils. (Some of these samples are older than the people reading this article. This makes me feel very old. Hey, get off my lawn!) I said before that I thought the Lucky Strike was the oldest of the oils we tested, but that’s only because I forgot about this can of Renuzit sitting in Blackstone’s garage. It’s rusty on the bottom so it leaks, and it’s not from a can like the others. This one was sold in a 5-quart metal jug. I particularly love this one, because the can not only says you’ll “Cut Your Oil Bills In Half,” but the first point of advertising on the side is a “Faster Getaway!” Now, they don’t actually say that this is the choice of oils for bank robbers, but I know if it was 1941 and my hungry Great Depression self was contemplating which oil to put in my Ford Special for bank-robbing time, this is the oil I’d pick. With practically no calcium or magnesium present, the oil’s TBN read 0.0, but it does provide would-be crooks with phosphorus, zinc, and barium as well as a 20W viscosity for the getaway (Figure 11). When you’re busy working a tommy gun, the last think you want to think about is whether or not you’ve made the right choice in oil.

So that’s the end of our series. A lot of thought goes into making oil, and that’s been the case for many decades now. We’ve poked some fun at the way oil companies sell their products, but heck, they’ve got to say something. We stand by our statement that “oil is oil” and in the end, it doesn’t make a lot of difference what you decide to use. Through all the years and all the permutations and configurations of oil and oil additives, the crude (and now, synthetic) stuff has kept cars running since Henry Ford did his thing more than 100 years ago. Buy what suits your vehicle and your wallet¾not what anyone else says you should use!

By |2024-09-19T10:12:53-04:00July 20, 2023|Articles, Gas/Diesel Engine, Marine|Comments Off on The eBay Oils (Part 3)
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