Least oil types and weights for my equipment

[Rizzo]

Hi -
I am looking for advice on oil to use. I live in central Texas have the following equipment. I have been using Rotella T5 15w40 oil in all. Does this make sense? Any recommendations? I would like to avoid having too many different types of oil and weights.

Diesel:
2016 Nissan Titan XD Cummins Diesel (10w-30 recommended)
2003 Kubota M4900 (10w-30/40 recommended)
1999 Case 580L II Backhoe (15w-40 recommended)

Gas: (I use Rotella T5 15w-40 in this as well)
1999 Dixie Chopper w/ Kawasaki engine FH601V (40w recommended)
Miller Bobcat Welder w/ Kohler Command18 engine(10w-30 recommended)
Club Car Carryall

Also - I have been using Mobil 1 in the following cars. Maybe I use this oil in my the gas equipment listed above?
2015 Cadillac XTS (50K miles) Mobil 1 5w-30
2002 Chevy Silverado (small v8 w/ 230K miles) Mobil 1 10w-30


Thanks,
Joe

 

[userfriendly]

15W40 in everything makes sense to me, ambient above 0F, but then again I'm a "thickie". I also like SAE 30 & 40 weather permitting. I save "synthetics" ,0Wxx & 5Wxx for winter.

 

[bithebay87]

I am with "user-friendly", in Texas you could get away with a sae30 year around.
The 15w-40 is tried and true, and would do well in all you have including the car and truck.

The XTS is a breed I do not know, so idk with that one.


Harvey

 

[SavagePatch]

I'd use Delo XSP 5w30 if you weren't in Texas but because you are I would say that your current Rotella T5 15w40 makes perfect sense. Because this is BITOG I'd up that to the new Rotella T6 15w40.

 

[4WD]

Stick with what you are doing on the Caddy - don't need to kill the Cad cats.

15w40 "synthetic" does not make much sense to me. Delo and Delvac have a nice Noack in 15w40 and is made for long runs … why pay more for HDEO if you want a 40.
The high mileage gas pickup would run fine on 15w40 in addition to what you run it in already.

 

[Rizzo]

Thanks for the feedback!

@4WD, I change the oil in the Titan XD Diesel every 5000 miles. In the other equipment, I change the oil once a year as I do not use it that much. Are you saying that a conventional oil is fine for my use case?

Thanks,
Joe

 

[BLND1]

DELO XLE 10W30 for the lighter diesel and gas stuff (CK4/SN rated).

DELO SDE or XLE 15W40 for the heavier/older stuff. You could totally use the Rotella T5 in this grade as well (I'm just not a Rotella fan - but it's totally fine).

All done.