Hello.Is there any advantage to running one or the other on an ISX 15?
Rotella T4 15w40 vs Delvac 1300 15w40
- Thread starter Redland1
- Start date
There's one line of T4 with different viscosity. Then there's Different lines of Delvac. Delvac 1300, Delvac Extreme, etc. I'm sure all of them meet cummins oil spec.
I would say no. The “preferred” Cummins oil is Valvoline. I’ve run 1300 in my 6.7 and now I’m on Mystik.
If it meets spec I’d run with confidence. Either will work.
Just my $0.02
In a reasonable OCI, there probably isn't going to be an advantage of one over the other. Rotella T4 might have a slightly more robust additive package, according to recent tests from PQIA:
pqia.org
Test Results on Delo, Rotella and Delvac | The Petroleum Quality Institute of America
Test results on samples of Chevron Delo 400 SDE, Shell Rotella T4, and Mobil Delvac 1300 Super. The three brands tested are SAE15W-40 viscosity grade, heavy-duty engine oil (HDEO) with API CK-4 credentials. Test results on samples of Chevron Delo 400 SDE, Shell Rotella T4, and Mobil Delvac 1300...
pqia.org
about the only advantage I can think of is Rotella is sold everywhere and Mobil Delvac is only sold almost everywhere. Cummins usually specs a 15w40 CK4 that meets the CES 20086 spec , which is pretty much all the mass market diesel engine oils.
Use whichever one is easiest to obtain for you. They are both great oils. The company I retired from ran the 1300 in all series of Cat, Cummins, Detroit (except the two strokes), Macks, and Mercedes engines. But I’m sure it was because of price for the amount they were buying. Their trucks were set for 50,000 mile oci’s and were sold after reaching 1 million miles. I’m sure Rotella could and has done the same.
dnewton3
Staff member
yes ... Price. Buy whichever is cheaper at the time of the oil change.
Your engine will NEVER know the difference, but your wallet will.
^^^^ this. This is why I switched to Mystik! I got 12 gallons for pennies on the dollar.
Just my $0.02
if a person goes the Fleet and Farm route for HDEO's
5 gallons of Traveller is 59 bucks at TSC.
same price for Providence Rural King label.. 59.
Walmart sells the Delvac 1300 in the 5 gallon pails for 64. ( which also has a rebate right now)
I'm assuming when someone said pennies on the dollar, they mean this sort of thing.
5 gallons of Traveller is 59 bucks at TSC.
same price for Providence Rural King label.. 59.
Walmart sells the Delvac 1300 in the 5 gallon pails for 64. ( which also has a rebate right now)
I'm assuming when someone said pennies on the dollar, they mean this sort of thing.
if a person goes the Fleet and Farm route for HDEO's
5 gallons of Traveller is 59 bucks at TSC.
same price for Providence Rural King label.. 59.
Walmart sells the Delvac 1300 in the 5 gallon pails for 64. ( which also has a rebate right now)
I'm assuming when someone said pennies on the dollar, they mean this sort of thing.
I came across a deal about 2 years ago that had Mystik JT-8 in 6 gallon boxes. It was on clearance for $29.99 with a $20 rebate. I bought the last 2 they had. So yes pennies on the dollar at $9.99 for 6 gallons.
Just my $0.02
yeah, you are my kind of shopper.
I kick myself in the butt for not buying all the 5w40 Rural King brand synthetic when RK clearanced it at 12 bucks for the 2 gallon jugs.. they were switching to Providence brand at that time point.
if it meets the spec run it! I used to be brand loyal on oil and I find I'm being less loyal as time goes on...
The bigger focus is on my wallet!
Just my $0.02
