speaking of oil i worked on this car today hasn't had an oil change in 3 years 45,000 miles after I laughed at them they ask me do I think it needs to be done.
I always liked Boones Farm wine and I never had to pay $3 for as bottle and I got my vitamins right with it. Thats what you call killing two birds with one stone.
Ski Doo recommends Semi-synthetic in the etec, an oil sipping 2-stroke. I gotta think if full-synthetic was that much better, they'd recommend the more profitable variety.
The way I look at it, semi-synthetic gives me the best of both worlds.