Which Oil
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so many uneducated people think it's good stuff. get your oil analyzed. you'll find it's junk in the LS1 compared to others.
i just got my hands on some M1 5W-40 turbo diesel oil. this will go in next change, and i will do a head-to-head analysis between GC 0W-30 and mobil 1 5W-40. remember, mobil 1 5W-40 is above and beyond better than xW-30 in EVERY WAY. 30 weight mobil 1 is garbage.
Sara Lou
Almost any motor oil is good for 3 times that mileage, with synthetic oil being good for 5-8 times the (US) recommended oil change intervals.
According to a feature article in the March issue of Lube's n Greases magazine, that represents the "unneeded production of 300 million to 400 million gallons of engine oil" every year! Who pays for all that unneeded motor oil? It's the motorists who change oil more often than necessary. And who profits from producing all this unneeded motor oil? The oil companies who continue to recommend frequent oil chages!
The article was written by David McFall, past president of the American Petrolium Institute (API) and Automotive Editor for Lubes 'n Greases magazine. He minces no words in questioning the motives of oil companies, asking why their oils can be used for 10,000 miles in European vehicles while being recommended for only 3,000 miles here in the United Stated. Most of us already know the answer to that question. The oil companies don't want to see their market cut by at least half by extending drain intervals. They'll stick to their 3,000-mile drain intervals as long as the American consumers will keep buying into it, at an estimated annual cost of $1.5 billion, according to McFall.
Oil specifications and drain recommendations in Europe are controlled by the vehicle manufacturers, with the oil companies having less influence than here in the U.S. Because of higher costs, Europeans are more careful about wasting energy. They are also very environmentally aware. They would not put up with the cost, waste, and environmental effects of changing their oil every 3,000 miles. They are very aware of the improved performance synthetic motor oils provide.
Sara Lou
seriously, if someone claims to be an "oil expert" and tells you this information, never take them seriously again because they have absolutely no clue. i probably know more about oil than this "expert"
10 it the weight of the oil at cold temps to lubricate as quickly as possible. oil actually gets thicker as it heats up and thats how you get two dif weights out of one oil. Car Craft has a very good article over this topic in their current issue wih the boss 302 on the cover.


















