Red33

Is anyone running rotella oil in there jeep? Ever had any problems with it?

cruiser54

Yes.
No.
That stuff is great.
Be sure to use a Wix or Napa Gold filter.

Red33

Good deal. The previous owner of my jeep said he had run rotella t 15w40 in it the whole time he had it. I wasn't sure if it was gonna ruin the motor or not.

cruiser54

Heck no. Shine a light into the oil filler hole and let us know what it looks like.

What oil filter is on there?

Red33

Im not sure. I know its a short black filter. Inside the valve cover everything is light brown. Im also 300 miles past due for an oil change and my oil is BLACK

cruiser54

At least it's not orange!! The filter that is.

hankthetank

Rotella + good filter = happy 4.0L

investinwaffles

What climate? 15w40 is definitely thick for my climate, but T6 5w40 has been working great in my jeep! Smooth as butter starts at 0*F.

I will probably switch to 10w30 when the temps warm up though.

X2 on the Wix/Napa Gold filter though.

dmill89

Several brands of filters are black including WIX (some models), Mopar, Bosch, and Mobil1, all of which are good, there may be some others to.


The stock filter (Mopar M090, Purolator L\PL14916, WIX 50185, Napa 1085, Fram PH 16) is relatively short.


You can easily fit an "over-sized" filter using a filter for the "old" Ford 302 (Motorcraft FL1A, Purolator L\PL30001, WIX 51515/ Napa 1515, Bosch 3500, etc.). These will offer more filter surface area and increase oil capacity by aprox. 1/2 qt.


For the original question I've used Rotella (T5 or T6) in my Jeep since I got it with no issues. 15w40 is a bit heavy for winter if you live some place that gets below freezing. 5w30, 5w40, or 10w30 (though the 5ws would be preferred) would be more appropriate for areas that get below freezing during winter, 15w40 should be fine for summer though or for areas in the south that don't get below freezing.

93XJLI

I run the T6 and an oversized Mobil 1 filter. Won't use anything else.

XJmike0122

The MS3 crowd swore by it and they had many oil analysis to back it up.

Red33

Well maybe il switch to 10w40 or 5w40 when I change my oil soon. Then in the spring il go back to the 15w40.
Im glad to hear good things about rotella. I didn't wanna have to find a different brand of oil to use.

scottmphoto

I'm currently running Rotella 15w-40 and a Napa Gold 1515 filter. I have read that our 4.0's like the zinc in the Rotella, that is why I switched.

Demonoid369

T3 or T5 which is better? Or are they the same and T5 is just a half and half mix of syn and conv. Oil

cruiser54

T3 is just fine. Use a good filter.