5w30 dino to 0w40 M1

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4,447
Location
Kuwait
Sounds good to me. How many miles on the truck? Might be worth running a short interval first, as it cleans up all the gunk, and gradually begin increasing OCIs.
 

crazycrak

Thread starter
Messages
392
Location
Abingdon VA
cold weather flow (good for start up) a tad thicker when warm then the 5w30 good for stop and go plus im getting the miles racked up and fuel eco.
 

JSP

Messages
127
Location
WA, USA
It is a quality oil and I wouldn't be concerned about using it, I have seen a lot of good results with it.
 
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1,714
Location
CA.
 Originally Posted By: Mark888
 Originally Posted By: JSP
Why are you interested in switching?
Because only a donkey would use conventional oil.
LOL AD
 
Messages
4,942
Location
Billings, MT
 Originally Posted By: crazycrak
cold weather flow (good for start up) a tad thicker when warm then the 5w30 good for stop and go plus im getting the miles racked up and fuel eco.
Fuel economy probably won't increase. The 0W-40 is a pretty thick oil. If it were me, I'd do the 0W-30 AFE instead.
 
Messages
782
Location
Alberta
With high quality Group II base oils being used in conventional oils these days, if you are going to do 6k miles oil changes or less, then there will really be no advantage in using synthetic over conventional.
 
Messages
14,776
Location
Illinois
Unless your engine is burning oil or leaking oil, most often a good synt is always better than dino. The M1 0-40 will be a good choice.
 
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