They're all the damn same. Just pick a high quality synthetic like Mobil 1 or Castrol or Valvoline and you will be fine. Anyone who will tell you otherwise can't provide hard, substantial facts to back it up.

(my 2 cents)

 

I can. Most XW30's don't meet spec, to thin at operating temperature and worse the HTHS is too low. Best to stay off threads about oil if you know SFA about oil!

 

omg fml

 

5w30 every 5k miles, happy engine

 

I'm wanting to go Mobil 1 5w30 because its so much cheaper than 0w40, but I'm scared lol. I've been with 0w40 since I got the car!

 

opcorn:

 

Mazola

 

5/30 okay depending on type.

OP...go to search/advanced search/type 'approved oils' into keyword search...then select titles only...you'll find a list of 40-50 oils. Chose one of those.

I'm sorry, but not liking the m1 0/40 as I blame it for my sudden loss of a qt. of oil coz of changed viscosities...and won't use m1 5/30 coz I used that by mistake for 30K miles or more...search me and m1 5w/30 if you want to experience my worst fanatic's experience ever.

Next, I'm thinking of trying one of the few 5/40s next.

d

 

5/30 okay depending on type.

OP...go to search/advanced search/type 'approved oils' into keyword search...then select titles only...you'll find a list of 40-50 oils. Chose one of those.

I'm sorry, but not liking the m1 0/40 as I blame it for my sudden loss of a qt. of oil coz of changed viscosities...and won't use m1 5/30 coz I used that by mistake for 30K miles or more...search me and m1 5w/30 if you want to experience my worst fanatic's experience ever.

Next, I'm thinking of trying one of the few 5/40s next.

d

Everyone is so nice today, and nobody brought up the 'search' word!

Mobil 1 0W40 here, has worked just fine.

Oh ...



Really? Just stocked up on M1 0W40 at $5.79/qt when Napa had it on sale.

..

 

Die.

 

mobile 1 0w-40

 

Bertolli. I recommend the exra virgin

http://www.villabertolli.com/products/all-olive-oils.aspx

 

This

 

^^^Agreed on the Mobil1 0w40. Started using it at about 80k (now at 170k) and my slow leak stopped completely (was previously using the BMW 5w30). Have had nothing but positive results with the 0w40. Its worth the extra pennies IMO.

 

You think an Italian oil is okay in the car? I'm thinking of agip...elf is from where?

Also, you can see my car is green, fern green...you think that makes a difference what oil I use? Thought I'd read something about that...

I don't think the weights or frankly the viscosity numbers matter much at all...or whatever the hell those other odd specs are...the A3/B4...I doubt they matter at all...but I think what does matter is what country of origin the oil is from...and maybe the color of your car.

And you thought you knew it all.

 

Royal Purple Turtle oil! i will have ur car last as long as a Tortoise

 

Everyone is so nice today, and nobody brought up the 'search' word!

Mobil 1 0W40 here, has worked just fine.

Oh ...

I'm wanting to go Mobil 1 5w30 because its so much cheaper than 0w40

Really? Just stocked up on M1 0W40 at $5.79/qt when Napa had it on sale.

 

Everyone is so nice today, and nobody brought up the 'search' word!

Mobil 1 0W40 here, has worked just fine.

Oh ...



Really? Just stocked up on M1 0W40 at $5.79/qt when Napa had it on sale.

I'll have to check that out. Thx

 

Mobil 1 0W40

 

..

:rofl: I originally included 'unless I missed it', then deleted it before posting. Should have left it in. Touche!

 

Got to go with your gut! FYI, I actually did read of someone reporting a uoa that indicated a drop in m1 0/40s viscosity...which then rose again later. Weirds me out that an oil could do that...though I suppose it's as likely that the uoa got messed up.

I also wonder whether there's any benefit to changing weights periodically anyway, just to keep her on her toes, distribute wear around more evenly or something. Is that crazy?

 

BMW castrol 5-30

 

I use 0W-40......every 7500 miles. Through Blackstone analysis....thats my sweet spot.....check it out....

http://www.blackstone-labs.com/

Here are some options...

http://www.bmwusa.com/Standard/Content/Owner/SyntheticEngineOils.aspx

 

M1 5W30 doesn't come close to meeting spec for viscosity and HTHS. It's an ACEA A1 oil and our engines require an ACEA A3,B3 oil or LL01.

 

Mobile 1 0w-40 all day!

 

Here's the real question, If oil and a filter cost me $58.00 why does my dealer charge just $70? BMW oil must be cheap for them buy.

 

Ever think about profit margin?

 

This thread is bullsh!t.

 

unicorn blood and virgin tears. Or is it virgin blood and unicorn tears?

I can never remember. Use whatever the hell you want.

 

If I drive my car around 4k miles a year, would it be smart to still use mobil1 0w40 or should I use mobil1 5w30

 

One of those two meets spec and it isn't the 5W30.