temp range for 10w30

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Dec 19, 2005 | 06:42 PM

tjbeggs

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From: Silver Lake Dunes, MI

temp range for 10w30

i am planning on switching to 10w30 rotella instead of 15w40 for easier starting. but i just want to make sure the temp range recommended is going to be where i am at all winter. and since the previous owner lost the owner manual and diesel suppliment and mitchell on demand only says 15w40 i figured you guys could help me out.

thanks
tim

Dec 19, 2005 | 08:50 PM

chapguy

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Just be sure that you change to a diesel rated oil. I've never seen a 10-30 that was for diesels.

Dec 20, 2005 | 04:29 AM

1997F-350

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From: SHELTON, WA

i am pretty sure delo makes a 0-30 diesel oil...

Dec 20, 2005 | 06:16 AM

tjbeggs

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From: Silver Lake Dunes, MI

shell makes rotella t 10w30. same as 15w40 rotella but 10w30.

so anybody have temp range from their owners manual? what are the outside temperatures that recommend use of 10w30?

Dec 20, 2005 | 10:15 AM

73cntry

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so anybody have temp range from their owners manual? what are the outside temperatures that recommend use of 10w30?
The temp would be 20 Deg and up for 15W-40(Preferred). 10W-30 20 Deg to -10 BELOW O(Preferred) Also has from 50 Deg to -20 below %W-30 can be used. Those are in Deg F and found in the 7.3LDIT Owners Supplement Guide
Hope that helps Tjbeggs