How often SHOULD you change your oil?
Veteran
Joined: Mar 2007
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RE: How often SHOULD you change your oil?
Just a little bit of info. Over in Europe they use the same oil we do and most companies on the other side of the pond have much longer drain intervals than the US auto makers. Why? Because US Automakers are in bed with big oil. Read uponthis at amsoil.com. Just imagine the millions of barrels of oil we could save if we extended our drain intervals to just 7500 miles. My sister has a BMW and her drain interval is every 15000 miles! I'm pretty sure that BMW knows what they are doing. However, both BMW and Amsoil tell you, to get longer drain intervals, you MUST use synthetic oil.
Record Breaker
Joined: Feb 2006
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From: Richmond, Va
RE: How often SHOULD you change your oil?
ORIGINAL: tinyfxds
Just a little bit of info. Over in Europe they use the same oil we do and most companies on the other side of the pond have much longer drain intervals than the US auto makers. Why? Because US Automakers are in bed with big oil. Read uponthis at amsoil.com. Just imagine the millions of barrels of oil we could save if we extended our drain intervals to just 7500 miles. My sister has a BMW and her drain interval is every 15000 miles! I'm pretty sure that BMW knows what they are doing. However, both BMW and Amsoil tell you, to get longer drain intervals, you MUST use synthetic oil.
Just a little bit of info. Over in Europe they use the same oil we do and most companies on the other side of the pond have much longer drain intervals than the US auto makers. Why? Because US Automakers are in bed with big oil. Read uponthis at amsoil.com. Just imagine the millions of barrels of oil we could save if we extended our drain intervals to just 7500 miles. My sister has a BMW and her drain interval is every 15000 miles! I'm pretty sure that BMW knows what they are doing. However, both BMW and Amsoil tell you, to get longer drain intervals, you MUST use synthetic oil.
Captain
Joined: Jan 2006
Posts: 666
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From: lakewood, NJ
RE: How often SHOULD you change your oil?
i'm too lazy to search for the link now, but i read a test that was conducted on oil life in a camaro. they had the oil tested every few weeks or a month, and it was analyzed for metal content and all that good stuff. i'm not going to bring up everything, but the end result is they had the oil in the motor for roughly 24,000 miles before there was deteriorating performance effects. they did change oil filters every 5k miles, but reused the same oil.
and, according to their lab test results, more wear occurred in the first 3000 miles than the combined 21,000 miles after that.
and, according to their lab test results, more wear occurred in the first 3000 miles than the combined 21,000 miles after that.
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Record Breaker
Joined: Jul 2006
Posts: 2,400
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From: Warren, NJ
RE: How often SHOULD you change your oil?
I read somewhere that two identical engines were tested for the equivalent of 60,000 miles ... one with regular oil changed every 3000 miles and the other with synthetic ... never changed. After all this, they tore down the motors and mic'ed everything. The synth motor had, like, 0 wear while the regular oil had the expected 60k worth of wear.
Professional
Joined: Feb 2007
Posts: 240
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From: USA
RE: How often SHOULD you change your oil?
so where can i find out how much royal purple is..ive heard its good for alot of fluids in our dodges....is it really as good as they say it is? is it synthetic?
Record Breaker
Joined: Jul 2006
Posts: 2,440
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From: PA
RE: How often SHOULD you change your oil?
Cereal do you just run Amsoil in the engine ? Reason why i ask is because i use there ATF , gear oil that alone help the mpg.. 15.8 city....If you like there oil , you will like there atf and gear as well...