Best Oil Weight for Maine

Black Widow · #1 (**permalink**) 01-05-2013, 04:59 AM

Does anybody no what oil would be best for my 03 F-250 6.0. I have been useing 15W 40 but it is getting too hard to start. I want a 10-30 or 5-40. Is a synthetic blend OK? Average temps at night are in the 20's or colder.

Jay06f250 · #2 (**permalink**) 01-05-2013, 05:14 AM

i was reading that the 5-40 full syn helps tremendousily with cold starts. I'm sure others will chirp in. Also the full syn helps keep heat down and prolong your turbo.

**southend** · #3 (**permalink**) 01-05-2013, 06:12 AM

Rotella t6 5-40w would help you out.

Sent from my phone that somebody didn't help me get.

pwrstroke6john · #4 (**permalink**) 01-05-2013, 06:15 AM

5-40 rotella all the way. It'll start like its July when it's single digits.

Sent from my iPhone using AutoGuide.com App

6.0FX4 · #5 (**permalink**) 01-05-2013, 08:59 PM

Im in Fairbanks Alaska, i use 5-40, works great, we are in negatives up here

Fosterslaw77 · #6 (**permalink**) 01-06-2013, 10:27 AM

I'm running t5 rotella sun blend....purrs when I start it up....especially when we were in low teens this week

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