Your diagnostic strategy needs to first focus on the supply of oil and then move outward to other possible problems.
Picking out a vehicle is more complex than just finding the right color and number of cupholders. Buyers need to make sure they take capabilities into account, on top of personal preference. A vehicle should meet a buyer’s day-to-day needs, and specs can be the deciding factor between multiple options in the same category. For
Many parts may “meet spec” but are they the best option? This video sponsored by ACDelco.
Cartridge oil filters are becoming more common on import-nameplate vehicles. This video is sponsored by MAHLE.
The only constant in the oil change business is change itself, especially if you’re trying to maintain an inventory of engine oil for all makes and models of vehicles.