Can similar spec'd, but different brand, oils be mixed?
Thread Starter
Senior Member
Joined: Nov 2015
Posts: 372
Likes: 21
From: Boynton Beach. FL
2017 C300 Coupe, 2013 Cadillac ATS 2.0T
Can similar spec'd, but different brand, oils be mixed?
I'll be doing my own oil change on the coupe and was wondering if different brand oils can be mixed. Last year Castrol EDGE 0W-40 (MB approved 229.3/229.5) was used. I have approximately 3 quarts left and was wondering if that could be mixed with 4 quarts of Mobil 1 0W-40 (Longlife-01, also approved by MB). It would seem to me that I can as both oils have the same specifications approving them for the C-300 2L turbo.
Member
Joined: Mar 2014
Posts: 81
Likes: 5
From: USA
2018 C300 Coupe
The short answer to your question is yes, you can mix those two oils. The resulting frankenbrew won't be optimal because the add-packs aren't complementary. Just buy a 5qt jug of Castrol 0w-40 on Amazon for $23 and use that with the 3qts you have left over from last time. That would be best for the engine.
Btw, Mobil 0w-40 no longer carries LL-01 approval, and hasn't for several years. That is a BMW spec that the curent formulation of Castrol still meets.
Our cars need oils listed on sheets MB229.5 or MB229.6
https://bevo.mercedes-benz.com/bevol..._en.html#close
Btw, Mobil 0w-40 no longer carries LL-01 approval, and hasn't for several years. That is a BMW spec that the curent formulation of Castrol still meets.
Our cars need oils listed on sheets MB229.5 or MB229.6
https://bevo.mercedes-benz.com/bevol..._en.html#close
Thread Starter
Senior Member
Joined: Nov 2015
Posts: 372
Likes: 21
From: Boynton Beach. FL
2017 C300 Coupe, 2013 Cadillac ATS 2.0T
The short answer to your question is yes, you can mix those two oils. The resulting frankenbrew won't be optimal because the add-packs aren't complementary. Just buy a 5qt jug of Castrol 0w-40 on Amazon for $23 and use that with the 3qts you have left over from last time. That would be best for the engine.
Btw, Mobil 0w-40 no longer carries LL-01 approval, and hasn't for several years. That is a BMW spec that the curent formulation of Castrol still meets.
Our cars need oils listed on sheets MB229.5 or MB229.6
https://bevo.mercedes-benz.com/bevol..._en.html#close
Btw, Mobil 0w-40 no longer carries LL-01 approval, and hasn't for several years. That is a BMW spec that the curent formulation of Castrol still meets.
Our cars need oils listed on sheets MB229.5 or MB229.6
https://bevo.mercedes-benz.com/bevol..._en.html#close
And as for M1 no longer carrying the LL-01 spec, it could be that M1 still meets it but doesn't want to pay Mobil the licensing fee to have it on the label???
