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Wouldn’t the motor work better’er with a 30 weight oiL?

I've ripped up the Rocky mountains in Colorado on 285 and highway 160 towing a 6k pound camper with a Ford 7.3 Gas and my oil temps hit 220 sometimes with 5w30 going up wolf creek pass. Not saying its hard on the engine per say but sometimes I wish had a 40 weight in there I think 20 weight...

is this because 0w-20 is GARBAGE for A 400+ HP engine that's made to tow?

I love amsoil but their 10w30 SS is freaking thin.. its barely in grade.

looking at this VOA..

I've ran a few 0w30 intervals, didn't notice anything unusual. I kinda want to run 10w30 over the summer (srs).

is this white bottle redline 5w30 or the OEM recommended black bottle?

I mean, this is true with any motor oil where different additives are competing with space on the metal regardless of it being diesel or gas motor oiL.

Ford recommends 0w30 in their 6.8 and 7.3 gas v8's when operating below -4 AND above 5,000' altitude

Ive been using AMSOIL Signature Series 5w30 diesel oil. Its dual rated for sn, sn+ but not sp. I like that its thicker and probably has higher levels of zinc and phosphorus. Its not burning any oil so i'm not concerned about cats failing. Even if its not SP, but is still dual rated for gas...

man and I thought my 3-4k mile OCI's were excessive..

Will the lean air mixture causes rod knock?

Just did an oil change with Mobil 1 FS 5w30, prefilled the oil filter then dumped the 5 quarts in. Noticed some small amounts of stuff on the bottom of the jug, didn’t know if it was additive fallout. I previously shook both 5 quart jugs up though. I shook up the unopened jug again and poured 3...

When I plug in my bx1880 after a couple hours of it being plugged in the oil filter gets pretty toasty. Warming the oil is a secondary affect of the block heater but it has to be plugged in for a while and preferably with no wind beating on it

There was an engineer from (Ford?) who said that they try and do the best with things like OCI’s and oil type but they ultimately have to yield to what the epa and government wants, and sometimes that means that long term longevity isn’t the concern of engineers. People are keeping their...

You sure? Their first and foremost priority is satisfying CAFE and gunment standards. They’re not interested in someone like me who wants 400,000 miles out of an engine before being rebuilt

How thick is 0w-16 north of 230 degrees American?

Identify Didn’t know the effects of an oil at 10.3 cst @ 212 degrees on the lower part of an engine (such as the rod bearings) that’s recommending oil that’s 6.76 cst at 212 degrees

Could a 30 weight cause a spun bearing or rod knock in an engine that’s spec’d/recommended for a 16 weight?

Saw the the link to the other thread but didn’t see what happened to your motor? Why was the engine rebuilt?