Checkfluid Diagnostics (Sampling Valves)
Fumoto Valve
Kleenoil Filtration

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

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

AMA Pro Racing
Sportbike Track Time

Oilamatic Inc. (Aircraft engines)

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