Delo 400 15W40 in a 4.7 Chrysler.

[cousincletus]

Now that the weather is getting hot I was thinking about using 15W-40 Delo 400 for my next oil change. This engine supposedly is sludge prone (www.allpar.com) and I was going to use this oil only in the summer months to help prevent sludge. Good idea? BTW the manual calls for 5W-30. I can't think of any possible harm a 15W-40 can do when the weather is hot.

Thanks in advance for the help!

 

[Last_Z]

Go for it! The consensus here is that Jeeps like a 40W anyway. Delo, Long-Life and Schaeffer's should work well in that 4.0L

 

[cousincletus]

Oops, I forgot to mention that the 4.7 is in a Dodge Durango, but still I think it's the same as what's in the Jeep GC.

 

[Pablo]

I wouldn't hesitate to use a synthetic 15W-40 in that rig....ditto the Delo, but get it out before fall cold returns....

What does the book recommend/warranty?

 

[cousincletus]

Book calls for 5W-30, but just about all mfgs. call for the same, I guess for C.A.F.E. reasons.

 

[nanney]

With your climate in VA, I bet you could run 15W40 9 months out of the year, if not all year.What type of temps do you see in Dec, Jan, Feb.?

 

[cousincletus]

Coldest temps are about the same as Eastern NC. Usually rarely gets below 15 degrees here. High temps are usually above freezing, too.

 

[Whimsey]

Isn't that 4.7L their newer V-8 motor, not the "old" style 4.0L L-6 that really does like a XX-40. As such is a 15W-40 really benefical or would the engine be better served with a XX-30. Just a thought

.

Whimsey

 

[cheeks]

Seems that somewhere on here I remember reading several opinions that Delo 15w-40 was good to go year round even in winter, except for extreme low temps. I could be wrong, though.

As for the 40wt part, I plan on running 15w40 in my 99 Suburban 5.7L, which calls for a 5w30, as soon as I exhaust my supply of Delo 10w30 which I ordered from the Chevron distributor last year. The Chevy manual specifically states "don't ever use 20w50", so there is a part of me which has a modicum of apprehension when moving up to a 15.6 cSt 40wt like Delo.

[ May 22, 2004, 12:03 PM: Message edited by: cheeks ]

 

[widman]

I'm running Delo 15W-40 in my 2002 Toyota HiLux 2.7 gasoline engine. Starts easily without noise even at -20C.