High mileage oil

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If you are dyslexic it may be a good choice........
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Originally Posted By: AirgunSavant
If you are dyslexic it may be a good choice........
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What ?
 
Originally Posted By: TmanP
Nope, won't cause any problems. This for your 3800?


Or the Chevy Sonic 1.8 l . Which would require Dexos spec .

The 3800 Buick does not call for Dexos spec .
 
Yep, I know that the 3800 doesn't need Dexos. But many High Mileage oils don't meet it anyway (as they're conventional). Just curious. Maxlife meets Dexos it and would be a good choice for both of your cars.
 
Originally Posted By: TmanP
Yep, I know that the 3800 doesn't need Dexos. But many High Mileage oils don't meet it anyway (as they're conventional). Just curious. Maxlife meets Dexos it and would be a good choice for both of your cars.


Many (most?) High Mileage oils are actually a blend..

That said, there is generally no problem with starting to use High Mileage oils when the mileage on your car is low (below the High Mileage recommendation).. it won't CAUSE leaks or make your car dependent on them. High Mileage oils just have a slightly higher-than-normal amount of certain additives compared to non-High Mileage oils. As TmanP stated, MaxLife would work great. I frequently run this in my Fusion, in fact it's in there now for my current (8k OCI expected) fill.
 
Right, I misspoke. But most of these oils, while they are a blend, aren't robust enough to meet the Dexos spec. Maxlife is a notable exception, but Pennzoil High Mileage/MS5K/Castrol High Mileage don't meet dexos. I think that they're closer to a conventional but may technically be a blend, possibly to meet SN specs.
 
+1 TmanP. You nailed it with that. I have heard Valvoline Maxlife is 50% full synthetic now.
 
Originally Posted By: TmanP
Right, I misspoke. But most of these oils, while they are a blend, aren't robust enough to meet the Dexos spec. Maxlife is a notable exception, but Pennzoil High Mileage/MS5K/Castrol High Mileage don't meet dexos. I think that they're closer to a conventional but may technically be a blend, possibly to meet SN specs.

One must be cautious here as the Valvoline Full Synthetic with Maxlife Technology is in fact a Dexos1 Gen 2 oil. The standard Maxlife is not.
 
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