Our flat tappet cams dont care that much.

 

Just make sure the weight is right, factory spec is 5w30.

Brand is personal choice, there will always be interweb fights over oil.

 

hahaha and X2 on your other comments. Im trying not to get sucked in. no one listens to facts they listen to hearsay or what they think is good and right. Nobody ever says..hey ive been tunning brand x oil and my oil test came back and said.....

 

 

Lucas doesn't contain any anti-foaming agents like motor oils do. Many auto parts stores have a Lucas display. The display is a series of gears with a shaft that you spin to see how well lucas oil sticks to the gears all the way to the top. On the other side of the display is the same setup, just with motor oil in it (no Lucas.) Well, if you spin both as fast as you can for about 10-15 seconds, you'll notice that the oil with the Lucas inside turns to just foam and bubbles, while the oil with just oil in it is still oil, with a few bubbles inside that disappear fairly quickly. Lucas's own display used against them. Try it for yourself.

 

I can provide UOA's for both my car, and many diesels if someone really wants 'em

 

 

So Lucas Oil Treatment is no good, especially in cold weather? And the optimum year round oil for the 4.0L engine is either 5-30 or 5-40?

 

Make your own decision based upon facts, not myths.

http://www.bobistheoilguy.com/cms/in...d=84&Itemid=92

 

And here is some good reading
http://www.alfabb.com/bb/forums/anyt...rari-chat.html

 

I posted Dr. Haas 3 min before u did.LOL

 

Dammit man!! Nobody reads it anyway

 

i don't like the lucas because it's so thick. we sell it in our shop, we have had good luck with it in saturns and northstar v8's. those engines burn oil like crazy. it does help the oil stay in there.

i do run the lucas synthetic in my honda and jeep. its about the same thickness as 14w40. i have no complaints on the synthetic lucas.

 

I bet I know 2 people that have read Dr. Haas........probably more than once.

 

hahaha