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Re: 20- 40 oil?
- From: Wayne Woodruff <wayne@xxxxxxxxx>
- Date: Fri, 01 Jun 2007 06:22:43 -0400
- Subject: Re: 20- 40 oil?
On Thu, 31 May 2007 14:42:06 -0700 (PDT), you wrote:
> For recently-bought R850R
> In my first real oil change, a bike mechanic has recommended some 20-40 oil.
> He pointed to a 55 gallon drum he has and mentioned 5$ per qt.
> Should I worry about the 20-50 rubric?
> thanks in advance
> -------- Paul, reader of "The Perfect Vehicle: What It is About a Motorcycle," Melissa Pierson, 1998
Do you have the owners manual or a Harnes or Clymer? It usually shows
a chart of viscosity versus temperature range. The one for my 'S'
does not list 20W-40, but does list 10W40. The top temperature for
that oil is about 70DEGF. It also lists 15W-40, with a top temp of >
Given that these engines run hot and lean, I'd stick with what's in
the manal. I run 20W-50 most of the time. 10W-50 in the Winter
$5/quart? What is it made of, premium dinosaurs? Is it synthetic?
How many miles on the engine?