What oil to run in the winter

[Ken w]

Hey guys I live in mass and it gets cold for a few months should I stay with the 15/40 or run something els for the winter months I drive the truck every day and plug in at night thanks


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[7.3Lariat]

My personal preference is to switch to the Rotella T6 5w40 synthetic for winter then back to 15w40 for summer.

[99powerstroke62]

15-40 is what I've been running here in Nebraska does fine as long as you let it warm up. but I've got an oil change coming up and I'll be switching to 5w-40 Shell Rotella T6
my truck will be thanking me for the switch

[Ken w]

Ok I will change to that thanks for the help


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[hondaracer315]

I always ran 15 40 in ri and vt and when I was in Maine, I never had any problems even when not plugged in.

[Ken w]

Ya in the 7.3 I had before this one I never changed oil in the winter but didn't know if it was better for the truck to use a lighter weight


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[hondaracer315]

Now I am in AK and I have changed to 5 40 and it helps big time up here when not plugged in.

Chris

[Mnally7.3L]

I run Rotella t6 syntheric , i would also run Rev-X oil additive it does wonders , easier start ups in cold , And quiets it down a bit

[chevelless414]

rotella t6 year round

[rufushusky]

I run rotella t5 10w30 in the winter, never plug it in.

By the by where are you in mass?