Hi guys –I forgot to get back to you 18 months ago after my first analysis.  You sent me a report for the Toyota WS fluid in my dad’s RAV4, which had reached the end of its useful life.  I had a shop change the filter & fluid.  The felt-like filter medium had actually started to deform, and was going to be sucked-out the top of the filter box by the pump.  With a new filter, and 8 qts of fresh fluid, I noticed an immediate improvement in shift quality.  I will definitely send you another sample in another couple years, as the vehicle doesn’t get driven much now. Keep up the good work. 

Thanks for handling with such a fast feedback. So I kind of expected higher silicon levels because I ride dusty roads lately. It shows not that high tough. As you said, light vis doesn’t hurt that bad eh? Well, I think its about time to try a heavier like 15w40. See you soon. Keep up the good work.

My car has been off the road and the track since I received the analysis on my M3 that showed high levels of copper in the oil. I’ve attached a picture of one of the bearings (actually two were “in the copper”) and truly believe that had I not gotten the early warning from my Oil Analysis the issue would have been much worse. I will continue to use Blackstone for the analysis, especially with fresh bearings in the car, to chart the health of my motor.

I’ve worked with several other labs and I love you guys and how you write reports. Becoming a big Blackstone fan.

You guys are awesome, will be sending more samples as the engine gets more mileage. The exhaust valves are titanium and the guides failed.  I want you to help me publish this data for all the Corvette owners so they can get this done. I had 5,000 miles after you saw how high titanium is and multiple experts told me it was all normal!!!!!!!!! This is the proof without tearing the motor down. And if it shows up again we will know the guides failed again.

Thanks for the good reports on these aircraft. It sure is nice to have the comment portion of these reports, it gives me something to show the customer rather just having numbers to show them. You guys get my vote (and business) for your informative reports that show more than just numbers.

Thank you so much. I’m so relieved they didn’t ruin my awesome car! You made my day!

Hello, I wanted to tell you about my 1973 searay you did an analysis on. I had the engine replaced.  When I had some time I took apart the block and found cylinder 4 had one 2 inch vertical crack on the cylinder wall.  It was an open system so I could not see any water missing. I did notice the oil looking like milk chocolate however the lab did not show much water in the oil. Anyway all the other measurements were way too high. Just thought I would update you on my findings. Thanks for your services.

Thanks for your quick response. It’s nice to know that the engine is one less thing to worry about.

I’m loving the confidence that doing the oil analysis gives that I’m not changing oil too soon.  I put a lot of money down the drain in the past. Thank you for the help!