The standard Napa Gold filter for a Cherokee is completely different from all of those numbers. 10-something maybe?

 

1085 for Chrysler and 1626 for Renix

 

Or 51085 and 51626 for Wix.

Unless you run TRACTOR filters like salad does.

 

Exhaust leak upstream of the cat has become larger, now I can see the steam blowing out on a cold morning. Starting to even sound like one...

 

I saw that someone asked about the stats for 10w30 Royal Purple. I use royal purple in my 2000 xj with royal purple filter. I called the company directly and they said that most autopart stores do not carry the correct oil for the flat tappet that we have. They gave me a part number to order off of amazon that had added zinc in it already. Royal Purple 35130 HPS 10W-30 High Performance Street Synthetic Motor Oil with Synerlec and says it has been Fortified with zinc/phosphorus anti-wear additive.
Any input on this? T6 has my interest now. Wondering how these compare. Thanks

 

Sure I'll add it to the list. I'm going to venture a guess that it's the same stuff for a much higher price.

 

Only if you call $8-$10/quart a "much higher price".

If you're really worried about Zinc/Phosphorous, Brad Penn is one of the few that lists those numbers right on their website. 1424/1139 (blackstone).

 

I think he actually ís preparing a thread like that....

 

Found this all the way on page 15, so giving it a bump. Wouldn't have too, if it was a sticky.....RR

 

Wow page 15 already..... hey did anyone run those royal purple #'s

 

Not yet, I have a list of oils to gather data for. Haven't had the time lately

 

from newbe fireman4220

I just read your entire 15 page thread.Wow!!! So much info for me with such alitte brain.
Yuor bottom line then , for my 2000xj you would say Shell RotellaT6 is my best bet.

 

Salad- don't know if its been mentioned... Check out amsoil (normal) and the ZRod (z for zinc). Seems to be what most of the stroker guys recommend... (I use Zrod)

 

And thanks for the read!