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New Member

7 Posts

Posted - 03/22/2012 :  9:26:31 PM  Show Profile  Reply with Quote
i work in northern B.C. Canada,we run school buses for manhauls in mines and to oilfield district manager told me today we are now going to run 10w30 in our engines all year around now.we run mostly ce buses btw with some mci coaches.i am not a big fan of this with the pressures the oil is subjected to with hydraulically actuated the cold winter months i can see it since we cannot house all our buses, but not in summer time when we are just as busy as winter.

Senior Member

72 Posts

Posted - 09/19/2012 :  2:10:14 PM  Show Profile  Reply with Quote
That seems a little weak to me. I run 40w in my own two buses. If I was going to run a multi-weight- it would be 15w40. Even in my light duty diesels such as my pickup and shuttle bus, I run straight 30w.
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Top Member

788 Posts

Posted - 09/19/2012 :  3:06:43 PM  Show Profile  Reply with Quote
5W40 Delvac 1 would be my choice. I thought I saw this thread somewhere else??
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United States
350 Posts

Posted - 09/19/2012 :  5:19:25 PM  Show Profile  Reply with Quote
Note the date of OP. It apparently was posted twice that day, and we all responded to the later one -

"Growing old is mandatory. Growing up is optional."
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United States
3402 Posts

Posted - 09/19/2012 :  9:30:34 PM  Show Profile  Reply with Quote
Originally posted by partsman_ba

Note the date of OP. It apparently was posted twice that day, and we all responded to the later one -

I thought I was going crazy! Breathing too many propane fumes they tell me. lol

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Top Member

973 Posts

Posted - 09/20/2012 :  3:55:59 PM  Show Profile  Visit IBTMech's Homepage  Reply with Quote
As far north as you are, 0W40 makes more sense. In the Arctic, years ago, they used to run kerosene in the cooling systems in the winter. We're talkin' back in the '20s and '30s, before ethelyne glycol, when straight alcohol wasn't enough.
A bit dangerous, huh?

If it doesn't fit, FORCE it.
If it breaks, well, it needed replacing anyway.
Pullin' wrenches for 45 years.
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