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can we PLEASE put a darn sticky up about motor oil. Its gotten way too repetitive to keep saying that just about every oil is the just about the same and that additives are useless...
heres a link to a report done by consumer reports, one of the most trusted test labs in the US...
http://www.xs11.com/stories/croil96.htm
heres a link to a technical breakdown of different oils...
http://www.unofficialbmw.com/all/misc/all_oilfaq.html
i'd look around on google more but i'm lazy. I did find a spot where they got 5 hp more out of synthetics but i'm still skeptical because they did not use the same weight of oil for every test... some of them were 0W-40 or crap like that. And besides, unless you have a pure race car (few of us on this board do) why would we want to recommend a 65$ oil change +filter especially when raced engines need oil changes very frequently.
the bottom line comes down to this: use the factory recommended oil weight (they spend millions on engineering, listen to the OEM) and, straight from the CR study: "The bottom line. In our tests, brand didn't matter much as long as the oil carried the industry's starburst symbol (see "It's not just oil," article 3 of 4). Beware of oils without the starburst; they may lack the full complement of additives needed to keep modem engines running reliably."
heres a link to a report done by consumer reports, one of the most trusted test labs in the US...
http://www.xs11.com/stories/croil96.htm
heres a link to a technical breakdown of different oils...
http://www.unofficialbmw.com/all/misc/all_oilfaq.html
i'd look around on google more but i'm lazy. I did find a spot where they got 5 hp more out of synthetics but i'm still skeptical because they did not use the same weight of oil for every test... some of them were 0W-40 or crap like that. And besides, unless you have a pure race car (few of us on this board do) why would we want to recommend a 65$ oil change +filter especially when raced engines need oil changes very frequently.
the bottom line comes down to this: use the factory recommended oil weight (they spend millions on engineering, listen to the OEM) and, straight from the CR study: "The bottom line. In our tests, brand didn't matter much as long as the oil carried the industry's starburst symbol (see "It's not just oil," article 3 of 4). Beware of oils without the starburst; they may lack the full complement of additives needed to keep modem engines running reliably."
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