Engine oil

[JeepHead]

I use T6 in everything. The way I see it is I can't afford NOT to do the best maintenance possible for what I own.

 

[jyoutz]

I use T6 in everything. The way I see it is I can't afford NOT to do the best maintenance possible for what I own.

I used to use T6, now I use Valvoline extreme blue diesel synthetic. Not that T6 isn’t a very good oil, but since I own a truck with a Cummins and they endorse that oil, I use it in everything with a diesel engine.

 

[5030]

We found out that switching lube oils at least in the Cats we ran in the fleet, switching lube oils would cause oil consumption for some odd reason so the shop stuck with Rotella 15-40 all the time.

 

[Williy]

Rotella T6 and Valvoline both offer high-quality synthetic engine oils, but Rotella T6 is known for its performance in diesel engines and its ability to handle extreme temperatures. Valvoline is well-regarded for its quality and is also known for its partnership with Cummins.

willy

 

[WinterDeere]

I'll use any brand that meets the grade, and is available in the weight I need. That's usually Pennzoil or Mobil, but have also used Rotella, Quakerstate, and Valvoline in the past.

Grade, weight, and amount seem much more important than brand, to me. I've seen engines fail due to incorrect fill amount, and even due to too-infrequent changes. But I've never seen an engine failure that could legitimately be traced back to one brand versus another.

A lot of people somehow don't undertand the difference between weight and grade, which is weird, as they have completely different number/lettering schemes.

 

[JeepHead]

I used to use T6, now I use Valvoline extreme blue diesel synthetic. Not that T6 isn’t a very good oil, but since I own a truck with a Cummins and they endorse that oil, I use it in everything with a diesel engine.

I ran T6 in my Super Duty but thankfully I know longer require a diesel truck, my gasser 3/4 ton handles what I need now. Cummins is located about 45 minutes away from me and one of my best friends is an engineer there.

 

[5030]

I always take any endorsement with a grain of salt because it might involve some sort of financial balance and or funds changing hands. I tend to discount 'endorsements' as a rule. Companies don't endorse another manufacturers product without some sort of financial benefit, least in my opinion, yours may differ however.

 

[JeepHead]

I always take any endorsement with a grain of salt because it might involve some sort of financial balance and or funds changing hands. I tend to discount 'endorsements' as a rule. Companies don't endorse another manufacturers product without some sort of financial benefit, least in my opinion, yours may differ however.

^^^ this!

 

[jyoutz]

I always take any endorsement with a grain of salt because it might involve some sort of financial balance and or funds changing hands. I tend to discount 'endorsements' as a rule. Companies don't endorse another manufacturers product without some sort of financial benefit, least in my opinion, yours may differ however.

No doubt there is financial benefit for endorsements. But I also don’t believe that a major manufacturer with a great reputation would endorse a substandard product.

 

[JeepHead]

No doubt there is financial benefit for endorsements. But I also don’t believe that a major manufacturer with a great reputation would endorse a substandard product.

Agree! Asked my buddy about this and he said that Valvoline and Cummins work closely together on engine development and have for many years.