hi octane for 4.3?
I just bought a '88 S10 4x4 with a 4.3 V6 engine. It did not come with an owners manual, so I am relying on my Chiltons manual for information on my truck. The book says that the 4.3 engine has high compression, so it needs high octane fuel. Unfortunately, I believe the former owner was running 87 octane.
Does my truck need the high octane fuel that the Chiltons reccomentds? Did the previous owner destroy the engine by using cheap gas? The truck has high milage (over 200k), if that makes any difference.