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I doubt that one notch on the octane scale will be noticable. It's just less likely to ping.

It's just like pourin' more Jim Beam into your weak drink!

I just took a peek in the air filter box for S&Gs. Has anyone seen an improvement in performance or fuel mileage by installing a synthetic media filter? I've used several Airaid filters over the years on my fleet. Also, what is the element permanently installed in the upper half of the air...

I recall running across - in one the many threads here - a discussion of the AC condensate getting behind the insulation blanket and running down the firewall. I just fixed mine. There was a similar discussion years ago over on turbodieselregister related to my 2004. The fix is to find a...

Nothing but Amsoil. I put a combined 530,000 miles on two Cummins engines, and oil analysis was always clean as a whistle, even after a year / 20,000 miles.

I would sign up for that if you track one down. I'm going to be swapping over to Amsoil early in the game. On a related note, is there a pre-fab heat shield for that exhaust pipe? It sure seems such a rig would cut way down on the heat input to the fluid. I'm considering header wrap.

With a little more digging, I found that Rain-X themselves make a product specifically for clear plastic. I ordered a bottle yesterday.

What seems to be the best protectant for headlight lenses? I'm just looking for something to make the bugs easier to remove. I checked the label on the spray version of Rain-X , but it's sort of ambiguous as to its safety for polycarbonates. Works like a champ on glass, but does it do the...

I traded a few notes with the folks over at PML (aluminum diff covers). I shot them a picture of mine, and they think my axle was made by Dodge.

Who builds these axles? Does the 3.21 have a proven track record?

OK, thanks. So those are the same axles.....'19 vs '20? Who builds those axles?

I just checked again. Neither engine code shows any rear axle lube recommendation. And oddly enough, the owner's manual does not list the fluid capacity of the rear axle. Just be sure to use that "Mopar lubricant". Oooooo-kaaaay.

I've been over on TurboDieselRegister since 1994. After putting a combined 530,000 miles on a '94 and an '04 Cummins-powered Dodges, my creaking old foot will not do that clutch thing any more. And I don't need a mighty 1000 ft-lbs of torque either, so I've downgraded just a hair. I just...

Why, oh, why does the flippin' engine assembly line not follow the instructions right there on the filter??? No....they put on with no oil on the gasket and torque it to 65 ft-lbs! I destroyed my first one on a new 5.7 Hemi getting it off. They all do it......Cummins is the same way. The...

How do I tell which engine I have? Those codes mean nothing to me.

Amsoil specifically recommends the Mopar additive? I mean, they sell their own additive.

The Amsoil site has no recommendation for a differential lube in the 2020 1500 Big Horn 5.7 (2WD) with the limited slip rear end. Can anyone enlighten me? Also, is there an aftermarket cover for that diff?

Hello all....new member here. I've been over on TurboDieselRegister since I got my first Cummins in '94. I"m in the process of selling my '04 because my creaking old foot will not work that clutch any more. So last week, I brought home a 2020 1500 Big Horn with the 5.7 Hemi, 8-speed, and...