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Old 08-03-2013
Rusty123 Rusty123 is offline
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Re: Confused about which oil weight to use

Posted a similar thread on "Bob is the Oil Guy". Amazing how varied the responses have been.

One correction to my original post: Here is what the manual actually calls for:

<50F: 10 or 20 weight
50F - 60F: 20 weight
60F - 95F: 30 or 40 weight
>95F: 50 weight

Based on my research, and forum responses that seem well reasoned, I need an oil with an hot viscosity of 40 or 50, and a cold viscosity as low as possible (for ease of starting and initial start flow). Something like 15w40 in conventional, or 5w40 in synthetic. Pretty much confirms what most people recommend.
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