Oldie Newbie who doesn't usually like sales pitch:
"25,000 Miles. How far the Amsoil Synthetic motor oil and Amsoil Ea oil filter went."
2 reasons i accept this:
1) Real clean-vehicle trucker i know runs all his machines on Amsoil with bp filter, never changes oil, rebuilds his big hiway mills every 1,000,000 km "to be on the safe side"(breakdowns are expensive). Sends oil out for tests regularly.
2) Back in 70s, sent out my synthetic oil at 5kkm intervals (hard to get hold of syn then - same with radials). Settled on 16kkm oil changes, when gradually increasing silicon content (lots of gravel roads) began to cause serious increases in metal content. Never went to Amsoil with bp filter, but later switched to expensive oil filters so i could push changes to 20kkm (easier to keep track, cost about the same). Dump 1lt in at 10k. Basically drive my cars into the ground. Never since had an oil burner or motor failure (ok luck has a lot to do with it).
So changes at 25kkm with superior products is a very reasonable expectation.
As a newbie here who has tried a lot of the easy gas saving tricks, the best i tried was a used lo-mile 94 taurus auto with immediate mpg readout. Best teacher i ever had. Sold the old gas-guzzler to a friend after putting my 50kkm on it, now he can learn how to drive efficiently before passing the good old gas-sucking teacher on. (Fighting to get 7 to 8 lt/100km hiway is a good teaching tool, whether you believe the actual readout or not.)
Still looking for ideas. Right now simply reducing car usage and using elec bicycle more. -Tonystep
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