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Old 12-28-2001, 12:30 PM   #1
aphex twin
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Question whats the best non-synthetic oil?

im about to do my first oil change and was wondering of those who use non-synthetic, whats the best brand out there? and what grade should i use for what season? thanks for any help and suggestions.

mike
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Old 12-28-2001, 12:40 PM   #2
vvk
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Default The cheapest :-)

Use the one on sale

Make sure it's got the API approval marks (starburst simbol) and the proper grade (SJ or SL).

Use 5W-30 year around. Unless you take a long trip to Florida in the summer -- I would use 10W-40 or 15W-40 then. Same for high-altitude summer driving.
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Old 12-28-2001, 06:32 PM   #3
Richard L.
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Always use a multi grade with the narrowest span of viscosity, like 5w-30 or 10w-30. Stay away from wide viscosity range oils, such as 10w-40 or 5w-50, because they are more prone to viscosity and thermal breakdown due to the high polymer content. It is the oil that lubricates, not the additives. Oils that can do their job with the fewest additives are the best. For more info and for motor oil data, check out this link.

I personally use Castrol GTX 10w-30 all year round.

--
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Old 12-28-2001, 08:26 PM   #4
yuzo
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finally a thread not about synthetic
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Old 12-29-2001, 12:08 PM   #5
MrHorspwer
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As long as the oil has the starburst, it has passed the API's tests. That is what matters. Here is some food for thought. Every oil has passed that test... some barely passed, some passed with flying colors. What do you call a student that went through med school with high marks? Doctor. What do you call a student that went through med school with constant low marks, but still passing? Doctor. Who would you rather have operate on you? Think about that next time you buy oil.
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Old 12-30-2001, 02:11 AM   #6
Alan
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Actually a better analogy would be to ask which doctor you'd rather have tell you to take 2 aspirin and call back next week. While I personally think the slight extra cost in a premium oil is worth my peace of mind, any oil specified as meeting the SJ service grade is going to protect your engine just fine if changed according to the service recommendations - and that usually means the severe use guidelines.

I'm constantly amazed at how many people DON'T follow normal service intervals, or check their vehicles fluids ever between services. Those folks are the ones whose cars break down due to neglect.
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Old 12-30-2001, 02:30 AM   #7
HIHO
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Alot of oils are actually made by the same companies.
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Old 12-30-2001, 08:46 AM   #8
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Quote:
Alot of oils are actually made by the same companies.
I think you meant there are only a few manufacturers relative to the number of brands sold, right? There's a lot of truth to that statement.

<small>And Castrol???? LOL!</small>

Steve
http://www.forcefed4.com
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Old 12-30-2001, 10:55 AM   #9
HIHO
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Yes, it was late when I wrote that. I was trying to be clever.

Yes I believe Castrol is a running contract. They are the whore of the oil manfacturers .
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Old 12-30-2001, 02:03 PM   #10
WRX34
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Castrol GTX 10W30 here 2.

A lot of racing buddies argue about synthetic but the guys running hard on the turbo's mostly run GTX, supposedly because of it's high temp breakdown.? alotofopinionsuhhuh.

-JR

PS- good link as a few posts above, check it out!

http://www.unofficialbmw.com/all/misc/all_oilfaq.html

Last edited by WRX34; 12-30-2001 at 02:14 PM.
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Old 01-01-2002, 01:29 PM   #11
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We are at the point where the new API SL spec oil is just showing up in the stores. My take is to use any SL you can find that also carrries the "Starburst" which means it is approved for gasoline engines. This would rule out most 10-40 and 10-50 oils.
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Old 01-01-2002, 11:51 PM   #12
XazerpmiX
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I use Castrol GTX 10W-30 in my RS

Mike
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