Just changed oil with Rotella 15w40 as that's what the parts store had so we shall see if after awhile it cleans the VVT passages and quietens them down. I've read in here several of you have had success with Rotella so hopefully so!!

 

I use Rotella T6 Synthetic in just about everything I own.

 

yeah i read where this is a great oil for cleaning all the engine and passageways of the VVT and such since it has alot of detergents. So I'll run it for awhile and see if my VVT will start operating correctly. IF it doesn't I guess I'll have to live with it. My tensioners are new so otherwise I'll have to pull the entire front timing cover off and if I'm gonna have to replace the VVT or solenoid I'm told you can't do it without that.

 

Okay been shopping around for tires since this Spring I'm going to have to replace them. When I bought this car it had 4 different tires on it lol. I'm guessing the guy just bought used tires or something crazy. One is a Continental, then a Fuzion, then Yokohama and I'm not sure the last one. Which ones do yall reccommend? I got quoted 88 a tire for the Fuzions.

 

I'm driving on Good Year Assurance. I like them. My wife's Tabby has Michelins, and they seem stiffer.

 

I put a set of the Bridgestone Turanza Serenity plus on my 98 XJ8 and really like the ride I am getting now.

 

Will the Rotella have any adverse affects on the internals? I had never heard of plastic timing chain tensioner a before, so just wondering if there's any other out of the ordinary stuff in there that could disintegrate from a healthy detergent oil.

 

I use rotella t6 5w40 synthetic in mine...

 

i would never recommend Fuzion tires, they are pretty poor in every climate Tire Search Results check this website for tires

 

i just want a good quiet tire with a good ride. I dont' need a Z rated tire since I aint going to the track...but I want it to have a good soft ride.

 

Fan of Rotella T6, had not thought to give it a try in my Jaguar XJR. Thanks for the idea.

 

Putting Rotella 15W40 in the VDP tomorrow morning. I got it for $13/gal at NAPA this morning. Too bad the air filter was $50.

 

U can use the grand cherokee air filter just shave the rubber surround down. 11 bucks

 

What year Grand Cherokee (and engine size)? Do you have a brand/part number that you could post?

 

Rotella is a good product and it's agressive nature regards the detergents does a good job of cleaning up a 'dirty' engine.
But I would not be inclined to use it all the time as it's not necessary.

The 15W40 you have chosen will be OK in relatively warm weather but does not function well in a VVT unit when the temp. drops.

The correct Jaguar spec. is 5W30 or preferrably 5W40.
You can use 10W40/50 in warmer months.
Use a good quality oil preferably full syn. and if the car is subjected to a large amount of urban stop start....change oil at 5.000mile intervals and the filter every second oil change.

The VVT's are only present on 4.0 litre non SC engines and work well if the stysrtem is kept clean.
Make sure the electrical connections to the VVT solenoid are clean and secure.

 

We are on the upper 80s to low 100s for the next 4 months. I'm not worried about the low temps now. From everything I've read, the new diesel oils are superior products to the dino Castrol products recommended by Jaguar.

Doing a lot of searching and reading on this forum, it appears that a synthetic blend oil may be the sweet spot, not full synthetic.

 

I started thread in the wrong place sorry....Allan

 

i used the 93 - 98 Grand Cherokee because the air box looks about the same...you'll have to shave the rubber down and make it fit but it will work...i"ve had no issues and my box clamps down on it and its in place pretty good. I'm about to change my oil again with the Rotella and put a new filter on. Just had my transmisison filter changed and new Mercon V put in...tried to have it greased but was told all the fittings are sealed fittings under there...that true guys?

 

There are a total of 4 grease fittings.

One at each u-joint on the half shafts.

 

Cutting an air filter to make it fit? All that to save a few $ ?.
If you can't afford to buy the correct filter (btw, napa is way more expensive than oreilly, pep boys, etc) for your car, may be you should get rid of your car and buy something you can afford to maintain correctly.
Sorry if my post sound rude but that was such a bad advise. Air filter specs are more than just size, cfm and design are also very important