Delvac or Rotella

[Bagger_Matt]

I have a 96 F250 powerstroke with 172,000 miles. I have used both Rotella and Delvac in the CJ formulation. Both are priced just about the same and both will be used for 5k oci. The truck uses about 1.5-2 quarts of oil in 5k. Which would you use and why.

 

[allan5oh]

Either one is fine.

 

[OilGuy]

Both are indeed quality oils.

On the heavy duty side, I find it interesting to see who engine designers chose to help them develop their engines?
Mack - Delvac technology
Volvo - Delvac technology
Detroit Diesel - Delvac technology
Mercedes Benz - Delvac technology
CAT - Delvac technology
Cummins - Valvoline (via a Nascar sponsorship deal - previously XOM)

Saw a market share graph at my local truck stop when buying Delvac 1 5W-40. Delvac has now overtaken Rotella (now #2) to be the most requested oil by professional truckers who change their oil at truck stops (46% Delvac vs 40% Shell nationwide).

 

[D-Roc]

Flip a coin...

 

[Bagger_Matt]

The only difference I've noticed is that my truck uses slightly less oil with delvac. The truck has matched its best fuel milage with both oils(19.6). We use delvac at work in every vehicle, gas or diesel. The Rotella info I've read makes it sound like the best oil out there. But is it good enough to switch from a known oil with first hand good results?

 

[ottomatic]

http://theoildrop.server101.com/forums/s...ge=3#Post871441

 

[honus402]

So Delo only has a 14% market share in the HDEOs?

 

[D-Roc]

I would probably choose Rotella due to the fact that I have seen it in more places than Delvac. But either one is a great choice.

 

[Bagger_Matt]

Ottomatic, Thats a great UOA! I've never seen a diesel report with such low iron and lead. Yesterday I was up at my parents house and couldn't find delvac at walmart. Today I checked the walmart near me and didnt see any. So that made my choise for me. RotellaT, at least for this service.

 

[STG]

Look for Mobil 1 for Turbo Diesel Trucks at Walmart. It's in the middle of the auto oil section along with the other Mobil 1 oils. Walmart carries it in a 4 qt. jug.


M1 TDT is Delvac 1.

 

[ottomatic]

Quote:

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Ottomatic, Thats a great UOA! I've never seen a diesel report with such low iron and lead. Yesterday I was up at my parents house and couldn't find delvac at walmart. Today I checked the walmart near me and didnt see any. So that made my choise for me. RotellaT, at least for this service.

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You won't be sorry. As stated Shell has been the only oil used in the 99 SD and changed every 4,000 since new.

 

[99]

If it is 15W40, go with the Delvac.

 

[coffee]

Delo, Delvac or Rotella are all great and will serve you well. Use whichever is easiest to find and be satisfied.