I have an 89 S-10 Blazer, 4.3, 700R4, entire drivetrain is new.
Did some research into the average mileage and found out that I'm getting about 6mpg less than I should be.
What are some things other than tires, filters, and oil, to check to improve my mileage? I refer specifically to the electronic engine controls.
How do I check my fuel injectors to be sure they are not leaking . I suspect my injectors are letting more fuel into the engine by way of leaking, than they should be- and therefore the engine is running rich.