Dexos1 Approved Synthetic High Mileage Oils

[userfriendly]

I thought API SN covered E-85 which would include GM's flex fuel engines.

 

[SR5]

Originally Posted By: TiredTrucker
Was mentioned the differences between GF-5 and dexos1, what got left out was ethanol emulsion. GF-5 walks all over dexos1 in that regard, which seems strange since GM is always touting they're a proponent of ethanol use.


Every Dexos-1 oil I have ever seen is always a SN and GF-5 oil too.

 

[ShotGun429]

I would never buy any oil marked Dexos on the bottle for my fleet of NON GM cars, Just stupid to me doing so.

 

[Nate1979]

Originally Posted By: ShotGun429
I would never buy any oil marked Dexos on the bottle for my fleet of NON GM cars, Just stupid to me doing so.


Which oil do you run that is not Dexos these days?

 

[Bgallagher]

Originally Posted By: Nate1979
Originally Posted By: ShotGun429
I would never buy any oil marked Dexos on the bottle for my fleet of NON GM cars, Just stupid to me doing so.


Which oil do you run that is not Dexos these days?


+1 I feel like most synthetic blends and fulls are either approved for or suitable.

 

[NH73]

Originally Posted By: SavagePatch
What are all of the Dexos1 High Mileage oils and which do you think is best?

Valvoline Maxlife (both full synthetic and blend) and Castrol Edge High Mileage (full synthetic) are Dexos1 approved. Maxlife seems to be universally agreed to be a good product capable of stipping/reducing leaks. The Edge HM is new, does anybody have experience with it?

Pennzoil Platinum High Mileage and Mobil 1 High Mileage appear to not be Dexos1 approved.


Mobil 1 High Mileage seems more interested in keeping the increased ZDDP levels than coming up to newer specifications. Pennzoil Platinum High Mileage does have the latest API SN, but not resource conserving so they probably not interested in getting Dexos1 approved. As time goes on, that could change for both of them.