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  #1  
Old 02-04-2020, 02:36 PM
Baird768 Baird768 is offline
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Best full synthetic oil for BMW

I recently purchased an 05 Bmw 325i with 151k miles and am having trouble deciding on best oil to stick with, the auto parts store said it would be fine to use 5w-30 valvoline full synthetic high mileage oil which is what I use in most my vehicles but none of them are foreign cars and I recently discovered that it's technically not approved by bmw, should I change it out to protect the engine or just ride it out to 4 or 5k miles and change it to bmw approved Castrol full synthetic high mileage.
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Old 02-04-2020, 05:22 PM
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Zeichen311 Zeichen311 is offline
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Castrol Full Synthetic High Mileage isn't approved by BMW either; it doesn't even meet the same basic European standards that BMW-approved oils exceed. As for the Valvoline, you're not going to kill your engine by leaving it there for one oil-change interval; don't sweat it.

BMW changed the Longlife-01 specification a year or so ago for some unfathomable reason; now, finding oils that still carry that certification is increasingly difficult. The next best, fully safe bet is to seek out any full synthetic "European Formula" oil that meets the ACEA B3/C4 spec. Castrol EDGE European Formula 0W-40 is one such. Pennzoil makes another and at least one LiquiMoly product is also suitable.
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Last edited by Zeichen311; 02-04-2020 at 05:24 PM.
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Old 02-12-2020, 10:23 PM
Baird768 Baird768 is offline
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Thnx, i went on a mission searching all the local stores that sell oil keeping in mind what you said and found the oil you suggested but also found out that Valvoline makes a 5w-30 european blend full synthetic LL-01 ACEA B3/C4 approved oil that says its best for BMWs and Mercedes, i had no clue it existed guy at the desk went into back room twice, they don't keep it up on the shelf with rest of the oil you have to ask for it and its $11 a quart.
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Old 02-13-2020, 05:21 AM
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Zeichen311 Zeichen311 is offline
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Quote:
Originally Posted by Baird768 View Post
Valvoline makes a 5w-30 european blend full synthetic LL-01 ACEA B3/C4 approved oil that [is] $11 a quart.
Oof. Highway robbery. Even BMW's own-branded oil was not that pricey nor were any of the alternatives, back when they had LL-01 approval.

The LL-01 certification would make it the most technically correct choice but honestly you don't have to spend that much to protect your engine.
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Old 02-13-2020, 08:19 AM
mr_bean mr_bean is offline
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BMW changed the LL-01 spec to meet the more stringent demands of their latest engines. I guess they figured it would be less confusing if there was only one spec so they scrapped the old one.
In your car you can use any oil that was previously approved to the old LL-01 spec. Itís a safe bet the oil formulations havenít changed and made them unsuitable.
Castroís edge 5w-30 and Mobil 1 0w-40 were two that were on this list that I still use on my older BMW and Mini.
If you google it you might find a copy of it.


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Old 02-14-2020, 12:39 AM
Baird768 Baird768 is offline
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Quote:
Originally Posted by Zeichen311 View Post
Oof. Highway robbery. Even BMW's own-branded oil was not that pricey nor were any of the alternatives, back when they had LL-01 approval.

The LL-01 certification would make it the most technically correct choice but honestly you don't have to spend that much to protect your engine.

Would 5w-40 oil be fine to use in this car? they actually ran out of the 0w-40 in that brand but i could always get it online however climate where i live may be proper for 5w. I also read that using an oil with only LL-04 is bad cause its meant for fuels in Europe or ethanol free gas which actually happens to be the only gas i use in all my cars but is that true?

Last edited by Baird768; 02-14-2020 at 12:41 AM.
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Old 02-15-2020, 01:38 PM
karzrus karzrus is offline
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The 0 or the 5 is the cold pour number. The smaller the number the better it pours at low temperature. Oils with a 5 work very well in very cold winter conditions, needing a 0 grade oil is likely unnecessary. Do you often start your car in -30-40 weather or colder?
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Old 02-17-2020, 04:22 PM
targaone targaone is offline
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With good amount of miles on the car i would not over think oil.. any of the full synthetic 0w 30 or 10w 30 or 15w50 oils should offer great protection.

I use mobil 1 15w50 for most of the year and 5w30 for the winter colder months.. i dont drive the bmw during winter but wanted to store it w new oil that i could drive it with in case i needed to drive it.
I buy 5 quart jugs from walmart two or more at a time with free shipping..

If i had a 3 or 5 year old bmw i might worry about every spec.. but honestly i dont think it will make a huge deal in the life of your engine.. changing whatever oil at reasonable mileage is more important.

For my high mileage older bmw i tend to change oil once or twice a year... but that is typically only a few thousand miles of driving a year.. in my opinion changing out oil at least twice a year keeps crud from building up.. if its a daily driver i would push that to three times a year.
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