I have read where running a motor oil formulated for diesel motors is better for the 4.0 I6 then some of the newer motor oils.

I have read where some are using Rotella, so I began to look into a supplier for that. Now I find there are several Rotella oils out there and I need to figure out what to use.

Looks to me like Rotella T 10W30 is the way to go unless I want to run synthetic and they do make a Rotella T synthetic.

Anyone using Rotella non-synthetic ?

I am looking for some feedback.

Thanks

 

I luv Rotella oil!!
I use 15-40 same type that I use for my diesel trucks, Rotella is a high deterget oil it will keep the inside of your motor clean. no sludge.
ROTELLA

 

I have 225 on mine can I just switch over to rotella?

 

I'm using Rotella T6 Synthetic which is a 5w40. I think my Jeep had like 140k on it when I switched over. You won't have any problems switching it over. Hell, I had a Saab with 204k on it that I switched to synthetic.

Synthetic oils today aren't like they were 15 years ago. They're pretty much trouble-free now.

 

If you want something good and a little cheaper shucks (o'reillys) has their brand full synthetic 5-30 5 quarts and a wix oil filter for $20

I talked to them and their oil is made by shell and similar to rotella.

 

From Shell on T6:



•




SPECIFICATIONS AND APPROVALS SAE Viscosity Grade 5W-40

API : CJ-4, CI-4 Plus, CI-4, CH-4, CG-4, CF-4, CF

My 2 cents:

 

Back when I attended a motorcycle technical school, my instructors told us the best oil to use was rotella for pretty much anything, dirt bikes, cars, trucks. It has like double the detergent and additives of royal purple, while being far cheaper. I've been running it in everything I have for years now and I'm in love, never had a problem. I run Rotella T6 5w-40 synthetic in my jeep, no problems.

 

Come on now.. I don't believe that for a second..

 

May not be double, but diesel engines require far more friction/shearing additives, along with zinc and detergents then normal gasoline engines. That's what makes rotella so great. Royal purple is nice, but it far overcharges people for what's really in it.

 

I am a huge fan of opinion BUT don't misrepresent opinions as facts. I would put RP against Rotella with my vehicle 100% of the time. I am not saying Rotella is bad by any means but RP is not what it is because of overpriced hype.. In my opinion (and from many facts that can be witnessed in videos, thread reviews, uoa's, you name it)

 

Neither are bad, they are both very high quality oils and I would recommend either of them. I go by what my old instructors have told me, I tend to trust them far more than anyone else, we would pick their brains for knowledge for hours in class. Most of them were either A techs in dealerships for decades, professional racers, professional racing mechanics for decades, or A-technicians the companies used to gather flat rate times. Not trying to start an argument, we are both entitled to our own opinions

 

I agree with you 100% both are great choices.

 

If I switch to Rotella how often do you recommend oil changes? And what viscosity should I be using? I have a 90' XJ with 183,000 miles on it.

 

Whats the temp where you live? What kind of driving do you do? DD or Wheeling?

 

This is why I asked the question. I have several motorcycles and though I do not use Rotella in them many people I know do use it.

Honda's big V-Twin the VTX1800 and the smaller version VTX1300 both have 'wet clutches' and you CANNOT use ANY OIL labeled " Energy Efficient " because of the chemicals added to make it efficient will make wet clutches slip terribly.