Checkfluid Diagnostics (Sampling Valves)
Femco Drain Plug
Fumoto Valve
Kleenoil Filtration
No-Spill Drain Plug

Airwolf Filter Corp.
AVweb
Cardinal Flyers
Cessna Pilots Association
EAA
FAA Website
Women in Aviation

BobIsTheOilGuy
Corvette Links
iRV2: RV Enthusiasts
Kerma TDI
NASIOCRV Resources
PPI Inspection Service
RV Web
Vehicle Inspection Services

AMA Pro Racing
Sportbike Track Time

Oilamatic Inc. (Aircraft engines)
SOS Automotive (Gas or diesel engines)

BobIsTheOilGuy
Ford-Trucks
History of the Pick-Up Truck
The Diesel Page
The Diesel Place
The Truck Stop
Turbo Diesel Register