Going back to 0w-20 for the winter

[CKN]

Agreed

Well....unlike many on here I don't try to out guess the engineers that designed the truck. In addition-the truck was certified at the time of purchase and has a 100,000 mile power train warranty. If you follow my posts at all-I do a ALOT of high altitude towing. Previous trucks that spec'ed the same oil never blew up.

An educated guess is that I have towed an accumulated 30,000 miles -most which running what most call "thin oils". Most in 5.3's running 0w/20.

 

[4WD]

Well....unlike many on here I don't try to out guess the engineers that designed the truck. In addition-the truck was certified at the time of purchase and has a 100,000 mile power train warranty. If you follow my posts at all-I do a ALOT of high altitude towing. Previous trucks that spec'ed the same oil never blew up.

An educated guess is that I have towed an accumulated 30,000 miles -most which running what most call "thin oils". Most in 5.3's running 0w/20.

The L83/L84 has a very stiff and concentric lower end (6 bolt) - and oil jets/coolers were added to control temperature …
The AFM/DFM concerns me some - but one of our engineers is well past 200k on M1 AFE (0W20) with zero issues …

 

[oil pan 4]

Well....unlike many on here I don't try to out guess the engineers that designed the truck. In addition-the truck was certified at the time of purchase and has a 100,000 mile power train warranty. If you follow my posts at all-I do a ALOT of high altitude towing. Previous trucks that spec'ed the same oil never blew up.

An educated guess is that I have towed an accumulated 30,000 miles -most which running what most call "thin oils". Most in 5.3's running 0w/20.

It's not the engineers. It's the bean counters trying to get that cafe number as absolutely low as possible with out having to recall a million engines.....

 

[dbias]

It's the bean counters trying to get that cafe number as absolutely low as possible with out having to recall a million engines...

But they just did lol

 

[oil pan 4]

It's the bean counters trying to get that cafe number as absolutely low as possible with out having to recall a million engines...

But they jut did

I bet they could have hid it well enough with 30wt to avoid the nearly 7 figure engine recall.

 

[50yr Street Mech]

Their using the 20W due to CAFE / gas mileage / etc. Every manufacturer has to meet CAFE standards , weight standards, emissions standards, mileage standards. That's why all these new cars are like beer cans. You lean on them, and now you have a dent to look at.

 

[CKN]

It's the bean counters trying to get that cafe number as absolutely low as possible with out having to recall a million engines...

But they just did lol

Be more specific, I know what you are talking about-but I don't like "hit and run" posts.

 

[CKN]

Their using the 20W due to CAFE / gas mileage / etc. Every manufacturer has to meet CAFE standards , weight standards, emissions standards, mileage standards. That's why all these new cars are like beer cans. You lean on them, and now you have a dent to look at.

What year beater do you drive?