3 posts in Car Diagnostics blog about "four-wheel drive" — OBD-II diagnostics, DTC codes, repair. ← All posts
Mechanically straightforward vehicles where most of the maintenance value is in drivetrain oils that nobody changes.
Axle and transfer case oil has a schedule that quietly gets skipped. Wear signs and why mismatched tyres destroy four-wheel drive.
On a manual, towing is a question of having a rope. On an automatic it is a question of the lubrication pump, which only runs with the engine running. The limits and the safe options.