Rotella T5

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Mar 4, 2010 | 11:59 AM

BobbyB

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From: Ethridge, TN

Rotella T5

Has anyone tried Rotella T5? It's a synthetic blend available in 10w30. I've been using Rotella synthetic 5w40. I don't have the diesel supplemental owners manual, so I not sure what rates are recommended. I'm thinking 30 weight might be too low.

Mar 4, 2010 | 12:31 PM

Cowboy65

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From: Smiths Grove, KY

I use Rotella synthetic 5W-40, no experience with the Rotella T5. Below is the recommended viscosity chart from my 2006 owner's manual.

Mar 4, 2010 | 12:41 PM

utjer

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From: Taylorsville, UT

Based on the chart, how does the 5w-40 synthetic fall in there? I know most of you guys run it year round. According to the chart, it says to not use that weight over 30 degrees.

Mar 4, 2010 | 02:54 PM

Cowboy65

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From: Smiths Grove, KY

I remember from a previous oil thread that Ford now recognizes 5W-40 for a much wider temperature range than the owner's manual shows. I don't have a link for reference but the extended range was from -20 deg F to over 100 deg F.

Mar 4, 2010 | 02:59 PM

utjer

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From: Taylorsville, UT

Quote:

Originally Posted by Cowboy65

Thanks Cowboy65

Mar 4, 2010 | 04:28 PM

69cj

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From: Middle Tn.

Quote:

Originally Posted by utjer

Based on the chart, how does the 5w-40 synthetic fall in there? I know most of you guys run it year round. According to the chart, it says to not use that weight over 30 degrees.

There have been some recent threads stating that Ford has since changed their oil stategy. Could be since motorcraft now has a 5W40 of its own.