The Lucas is like molasses when its that cold and will help starve your motor of oil....

 

Here's a little bit about Lucas. I've had excellent luck using 5 quarts of oil and 1 quart of MMO to get ticky lifters to quiet down BTW.

http://web.archive.org/web/201009261...ucas/lucas.htm

 

I made a thread about that, not much love from the Lucas users haha, but I tried the same thing with a drill and a risk in a jug and it really does get foamy like that,

 

Also I am now a strong Beliver of lubro moly mos2, one can and you should be set!

 

I think that's where I got the link. LOL.

This Moly stuff has me curious.

 

I used 5qt 5w40 (shell brand, the ONLY brand I could find with it) and 1 qt MMO. My jeep is as quite as its every been. Oil pressure is a little high now cold 60 but driving and when it warm it stays right at 40 like before. just my .02

 

Just trying to save some people a few bucks, and you can look it up on bob is the oil guy, all kinds of good stuff, literally hours of good info backed by tests and research, made me finally choose Rotella t-6 because of the added zddp for our older xjs, I don't use any oil additives because most are frauds or actually harm your engine, I use zddp boosters and that's about it, but this moly actually has me sold lol



Another fun fact most people using synthetic oil are not actually usuing synthetic oil, but a dinosaur base stock ( group 3)with some pao base stock also some group 4/5s ( actual synthetic but very expensive )

 

I did this with my wife's XJ and changed it at 1,500 miles and did it again. The cold start lifter clack reduced immediately the first time I did it and was gone before I changed it at 1,500 miles.

My Comanche has about 1,000 miles on the same treatment and it's identical lifter problem is way reduced and I suspect will be gone by 1,500 miles or so.

 

If you want run a strong detergent oil and mmo and if anything is left after that ill be surprised ( pens ultra is awesome and so is Rotella t-6, depending on miles I would go with Penz ultra clean and mmo for 3-4k , watch your oil levels mmo does burn off since it is a thinner oil, and that should clean it right out)

 

It's amazing the difference when you shine a flashlight into the oil filler hole now. Really cleaned it up.

 

Best place to get the Lubro?

 

Im ocd about my cars/trucks, a clean engine with a good oil lasts forever, I got mine at napa, but the napa down the road does not carry it -.-, some people order it off the net

 

every time i go snowboarding

 

same, ive seen it work miracles with beat up autos...made em like new, but i had a slight lifter noise starting in my 4.0L so used some lucas with 10W30 and it got worse so i just started running 15W40 and all good

 

Lucas does have two types of gasoline engine oil additives. 1 is a conventional fossil fuel additive which is thicker like honey. The other is a synthetic makeup and is significantly thinner. I have used both additives in my XJ, WJ, 97' 4.6 liter F150, 1970 FJ Cruiser with a Chevy 350. The normal 4.0 liter tick seemed to disappear with the synthetic additive. These additives do work, I have had my oil tested to prove to myself it was worth the cost (My company owns heavy equipment and we send in oil samples regularly to ensure our millions in equipment is working properly) so I sent used oil with and without the additive in for testing.
Have you used NAPA brand oils before? I use nothing but Mobil 1 fully synthetic 5W-30. I live in Colorado and honestly depending on where work takes me in this state it could be -20 to 110 degrees between oil changes.