i havent done a thing with my engine at 191,000 km aside from plugs and wires at 100,000
i still get 450 hwy and i drive the hell out of it
to be honest the 2.50-5$ injector cleaner you use wont yeild back the 2-5 litres of fuel you could have bought
oil changes ever 6-8k (100% hwy driving oil is still clean after 8k and i dont need to top it up)
Last edited by Putz; 07/05/06 01:50 PM.
