I have been using Ams/Oil since 1974 and just love it. Have put over a hundred and seven K on two S-10"s and have no trouble. No oil burning and NO problems. Change oil every
The same things were said when high detergent oils first came out but the military switched its vehicles over with no problems.
The detergent in oil does not clean an engine; it is really a detergent-dispersant because it keeps the dirt in suspension and prevents it from "plating out" onto engine parts (forming sludge). Synthetic oil has a much better flow characteristic at low temps and if you have poorly installed gaskets, it may seep past them.
I've switched vehicles over to synthetic oil at anywhere from 35,000 to
154,000 miles and never had a problem. I have a truck that I switched at 86,000 miles and it currently has 197,000 miles on it. I get about
4,000 miles to a quart of oil (city) and 2500 miles to a quart on the highway. I get good fuel mileage but I can't say whether or not it's because of the synthetic oil.
Group: alt.trucks.chevy Date: Mon, Apr 24, 2006, 11:35am (EDT+4) From: craig snipped-for-privacy@sbcglobal.net (Craig M) Just wondering what every body thinks of syntheic motor oils, my dad swears by Castrol SynTec oil, what are the pros and cons of it and switching to it on high milage engines, 03 envoy with 117 K miles. He claims it inproves milage and makes it run smoother, is the extra cost worth it??? And is there a problem switching to it???
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "Sometimes, when you're up to your butt in alligators, it's hard to remember that the intial objective was to drain the swamp." ~ Unknown ~