Hi CAEMI. You doubled it? How nice. That's great.

 

Well maybe the recommendations have changed? I just looked at my book again and verified that 60*F is the max temp for 5w30. My book is old though, covers 84-93. Coach

 

30HD any 4x4 filter

 

In my two 84z i use Chevron straight 30w and Fram Original orange filters. In my 291,+++ mileage black 87 with first year 4.0 I use Supertech 10w-40 and Fram original orange. In my White 96 with 4.0 and 5 speed I use Quaker State 10w-30 SUV Syn blend and a Napa 1515 Proselect filter and in my Red 99 2 wheel drive Ive kept Pennzoil 10w-30 conventional with a Napa 1515 filter in its HIGH revving 4.0 for the last 5,000+ miles. Im doing a Shell Rotella T5 10w-30 Heavy Duty engine oil change with a Napa 1515 filter in my Moms 2001 Red Cherokee for the flat tappet cam protection that a Diesel oil can deliver.

 

Purolator Pure One, & Valvoline max life syn blend.

10W40 in the Summer, & 10w30 in the winter.

 

OEM filter.
Supertech Diesel 15w40 during summer
Shell Rotella 10w30 during Winter


Im in Texas so it really doesnt get that cold here. I can get away with running 15w40 year round honestly.


Edit- i dont know how i wound up on an almost decade old thread. Whoops

 

I typically use Wix filter with Quaker State Conv 10w30

 

1085 Napa Gold, which is really just a rebranded Wix, Napa 5W30 conventional for the winter, and Napa 10W30 conventional for the warmer months. Which is just rebranded Valvoline.

 

Motorcraft FL1A filter, 15w40 Diesel oil, all year round.

 

Bump... for more answers. I'm actually making a log of what everyone is using so I can help make up my own mind on what to use when I change my oil next. No I'm not one of those people that does what everyone else does, but I figure on a forum that has to do with vehicles, motor oil and filters is a big topic and a lot of people know a lot about that kind of stuff. I know what I use on my Cummins and my LS1 because of data and history, but I'm not familiar with a 4.0 IL, so I'm gathering data.... I currently have a Wix and mobile 1 synthetic 10W-30 in mine. That's what the old owner used forever. If it wasnt the Wix, he used a purolator filter. I'm thinking about going the T6 route since I already buy it for my Cummins, along with my brother and step dad. Maybe we can just go ahead and buy a 55gal drum of it hahahaha.... but that crap IS expensive. I may just be better off using valvoline or castrol, those seem to be pretty popular so far... Of course, I dont need 12 quarts for the XJ like i do for the cummins, and mobil 1 syn is about the same as T6 for a gallon...
Keep those answers coming....

 

My buddy/old boss at the store runs the Amsoil with the Napa Gold filters in '04 Dodge Cummins. At least I think he uses the Napa Golds.
Once told me an oil change cost him about $100. That that is with his discount that he still gets.
He has owned the '04 since new and betting he has never used anything but the Amsoil.

 

Same thing here!

 

Brand: Valvoline or Mobil 1 whichever is in stock
Viscosity: 10w30 High mileage full synthetic
Filter: Regular size Wix or Mobil 1 again whichever is in stock
Interval: Every 3,500 miles

 

Thought I answered on of these but I don't see it.

1996 XJ Sport 242 ci 355,000 miles
Mobil 1 High Mileage synthetic (gas)
5W-30
WIX regular size 51085XP (for synthetic) if I am changing it, MOPAR regular if Walmart is changing it

 

I swap between filters Motorcraft FL1A / Puralator Pro and oil T5 10w30 or T6 10w40 depending on what I have.