[Jake335i]

I want to use Mobil 1 full synthetic do I need 0w-40 or 5w-30

[TrAcK TRaP]

0W-40..

[floydarogers]

Originally Posted by Jake335i

I want to use Mobil 1 full synthetic do I need 0w-40 or 5w-30

0W-40. It says BMW LL-01 on the bottle (5W-30 does not).

[ThatRWD]

Mobil1 burns pretty fast compared to other oils... I wonder where it goes

[e92_enthusiast_1]

OEM LL-01 comes in 5w-30. Mobil 1 LL-01 Euro is 0w-40 either way most important thing is you change it at a decent interval.

[Supreme214]

mobile 1 0w-40 or castrol 0w-30 both LL-01 approved

[srbarnes4ever]

Originally Posted by JinLee09

mobile 1 0w-40 or castrol 0w-30 both LL-01 approved

Is it only required to use the LL-01 designated oil if going with extended OCI? If one were use 5k - 7500 OCI, would any high qual synthetic oil not be sufficient?

[floydarogers]

Originally Posted by srbarnes4ever

Is it only required to use the LL-01 designated oil if going with extended OCI? If one were use 5k - 7500 OCI, would any high qual synthetic oil not be sufficient?

Not really. BMW specifies specific viscosities, specific HTHS, and other oil parameters. That gives a very narrow range that meets the far more restrictive ACEA A3/B3-B4 classification which many/most synthetics don't meet, even before the other parameters in LL-01.

The differences are small, and there is no doubt that people have run non-approved oils in these engines successfully, but are you going to risk a $25K engine by saving $5 each oil change? Are you a mechanical-chemical-electrical-metalurgist engineer that designs engines? Didn't you buy a BMW because you like the cars and engines that their engineers designed and specified out in every detail?

Using your "favorite" oil is due to marketing; using a BMW-approved oil is science/engineering and marketing.

[BashShah]

Originally Posted by JinLee09

mobile 1 0w-40 or castrol 0w-30 both LL-01 approved

1+, I use 0W30 Castrol.
2007 335i Sedan.

6.5 Litres and a MANN Oil Filer Kit.....cause it comes with everything.

DN

[Jake335i]

For the Mobil 1 0w-40 is that the stuff I can get at Walmart?

[e92_enthusiast_1]

Correct.

Originally Posted by Jake335i

For the Mobil 1 0w-40 is that the stuff I can get at Walmart?

[Jake335i]

Originally Posted by ThatRWD

Mobil1 burns pretty fast compared to other oils... I wonder where it goes

Probably out my exhaust lol

[EMITTR]

Redline, Royal Purple, Pennzoil Ultra Euro, or Liqui Molly 5W30 - but to tell you the truth you can use any oil cheap or expensive if you change every 3k miles. I use Redline now.

[Jake335i]

Thanks everyone just gonna stick with the Mobil 1 0w-40 and probably just change it out every 4k

[bender rodriguez]

Originally Posted by Jake335i

Thanks everyone just gonna stick with the Mobil 1 0w-40 and probably just change it out every 4k

overkill

[e92_enthusiast_1]

Maybe. I'm doing between 5-7.5k miles depending. With the seals and stuff going on turbos the way they do wouldn't fresh oil keep them from wearing as fast?

Originally Posted by bender rodriguez

overkill

[bender rodriguez]

Originally Posted by e92_enthusiast_1

Maybe. I'm doing between 5-7.5k miles depending. With the seals and stuff going on turbos the way they do wouldn't fresh oil keep them from wearing as fast?

I doubt it.. Mobile 1 rates their oil for 15k and BMW computer is about 15k too. Even if changing oil every 4-5k miles made any sort of difference do you think you would see the damage in the time you own the car? Doubt it you would have sold the car years before that happen. Even if the car did have some type of failure from not changing the oil enough. The money you saved from not doing it every 4k could be put towards whatever repair.

Tons of people running around in civics, gms, fords neglect the shit out of their car and might run 20k before an oil change. Don't see those cars exploding. Have a little faith in the oil and the car..

[GB-335xiCoupe]

Mobil1 0W-40, every 7,500-8,000 miles.
In my case, my next will be the high mileage variety.

[Agentphish]

I've been doing Mobil 1 0W-40 as well in my 328. Every 5-6K miles.

Not because I don't think the oil doesn't last longer than that, but because I don't trust filters for longer than ~7500mi based on conversations with 2 lifelong BMW/Porsche mechanics with 50+ years of combined experience. I plan to keep the car until it doesn't drive anymore so I do it early, and have piece of mind that everything is fresh.

Also installed a GoldPlug magnetic plug last time I changed.

[srbarnes4ever]

Originally Posted by floydarogers

Not really. BMW specifies specific viscosities, specific HTHS, and other oil parameters. That gives a very narrow range that meets the far more restrictive ACEA A3/B3-B4 classification which many/most synthetics don't meet, even before the other parameters in LL-01.

The differences are small, and there is no doubt that people have run non-approved oils in these engines successfully, but are you going to risk a $25K engine by saving $5 each oil change? Are you a mechanical-chemical-electrical-metalurgist engineer that designs engines? Didn't you buy a BMW because you like the cars and engines that their engineers designed and specified out in every detail?

Using your "favorite" oil is due to marketing; using a BMW-approved oil is science/engineering and marketing.

Mechanical engineer = check....engine designer = negative.

I was looking for the details that made LL-01 different from other syns, which you provided in the initial paragraph. I prefer an eyes wide open view of the world and don't always believe that every "requirement" from an OEM is a minimum guard band. These same engineers are constrained by a multitude of variables -- not all of which result in their best foot forward for Customer use, e.g. HPFP, turbo wastegates, etc.

Appreciate the response.

[Welcome to NBA Jam]

Dealer oil, because it's the best bang for your buck. You can find it for $7.95 at the dealer, or $6-ish with a CCA discount. The stuff is made by Castrol (for now). It's well-designed.

[evoix]

Originally Posted by ThatRWD

Mobil1 burns pretty fast compared to other oils... I wonder where it goes

+1 have the same problem with mobil. Castrol holds up better for me