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Old 12-06-2009, 02:11 AM
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Default What oil weight are you using?

I just had my oil changed and it was with Castrol Syn 5w-30 which is what has been used since new. The car now has 40K miles. What is everyone else in the mileage range using? I've seen some using 0w-40 Mobile 1.
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Old 12-06-2009, 03:20 AM
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2004 R53 w/ 165k+ miles here, so 10W-30 Mobil 1.
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Old 12-06-2009, 04:01 AM
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2004 R53 w/ 165k+ miles here, so 10W-30 Mobil 1.
So is it recommended to move up to a thicker oil with miles?
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Old 12-06-2009, 04:19 AM
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So is it recommended to move up to a thicker oil with miles?
Yeah. From what I understand, tolerances loosen up as the engine wears, so thicker oil does a better job of maintaining sufficient oil pressure inside bearings.
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Old 12-06-2009, 04:21 PM
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5w30 royal purple... I have just under 60k
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Old 12-06-2009, 04:34 PM
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0w40 Mobil. Used to use 5w30 Mobil, but did some reading on the Mobil website and the 0w40 is the appropriate oil for the engine. Just over 35k miles, changing the oil and filter every 3-4k.

Going from a 5w30 to a 10w30 really isn't a viscosity change that would help with larger tolerances. They are both still 30 weight oils when warm.

Your tolerances shouldn't be opening up that much as mileage goes up. The only metal to metal wear part should be the rings, and that shouldn't change till very late in the motor's life.
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Old 12-06-2009, 05:29 PM
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Hmm... Maybe I should run 5w-40. I've driven the hell out of my car, including summer track days in 100 degree heat, tons of canyon driving, 50+ mile commutes in heavy traffic, etc. No baffled oil pan, so I'm sure I experienced some accelerated wear due to brief gaps in oil flow.
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Old 12-06-2009, 05:33 PM
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Huh...

https://www.mobiloil.com/USA-English...age_5W-30.aspx
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Old 12-06-2009, 05:46 PM
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Ive never used high mileage oil. My builder told me never to use it when we built the first motor for one of the cars. He said they contain a lot of the same seal swelling additives that stuff like Lucas stop leak contain.

Quote:
"Contains a special seal conditioner to help recondition seals and prevent leaks."
Yeah, right, it reconditions them.


You could always switch over to the good old straight weight. As long as it doesnt drop below freezing, you should be good to go.
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Old 12-06-2009, 05:50 PM
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https://www.mobiloil.com/usa-english....aspx?option=2

https://www.mobiloil.com/USA-English...l_1_0W-40.aspx

It meets or exceeds Mercedes, Porsche and BMW Longlife standards, thats enough info for me to make a decision.
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Old 12-06-2009, 06:00 PM
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Quote:
Originally Posted by not-so-rednwhitecooper View Post
https://www.mobiloil.com/usa-english....aspx?option=2

https://www.mobiloil.com/USA-English...l_1_0W-40.aspx

It meets or exceeds Mercedes, Porsche and BMW Longlife standards, thats enough info for me to make a decision.
Huh... nice. Thanks. I'll probably do that on my next oil change. It makes sense. Super easy flow for cold starts, but more viscous once warmed up.
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Old 07-03-2010, 10:27 PM
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FYI thought I would pass this along. Was at Walmart yesterday and saw that they are selling 5 quart bottles of Mobil 1 all weights for $21.00 "rollback" which is a good deal compared to buying individual bottles.

http://instoresnow.walmart.com/enhan...ktid73392.aspx
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Old 07-04-2010, 01:27 AM
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Ive been using the Mobil 1 0w40 for the last 3-4 changes after i bought a few cases from a local guy. No complaints here. Going to change the oil with it again tomorrow.

Luckily it seems to do well, and i can actually head down to most any parts store to get it vs going all the way up to the dealer.
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Old 07-04-2010, 05:27 PM
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Quote:
Originally Posted by Ross View Post
FYI thought I would pass this along. Was at Walmart yesterday and saw that they are selling 5 quart bottles of Mobil 1 all weights for $21.00 "rollback" which is a good deal compared to buying individual bottles.

http://instoresnow.walmart.com/enhan...ktid73392.aspx
Thats what ive been doing
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Old 07-08-2010, 03:41 PM
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Quote:
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Ive been using the Mobil 1 0w40...
Same here - Mobil 1 0w-40; just completed my 2nd change on the Clubby @ 6K miles.

- Erik
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