Wilsons Sandbox
http://www.frenchandlogan.com/phpBB3/
http://www.frenchandlogan.com/phpBB3/viewtopic.php?f=52&t=259978
--- I can just picture you now, Bill , standing in front of that wall of motor oil. "Grand Prix". Yep, that's what I want. Right after I win the Paris-Dakar on my KLR, I'm gonna be heading for a Grand Prix. Sounds like that 70 is ALMOST thick enough to use for chain lube. Not something I'd put in MY klr.> >Once home I looked a little closer and it is "Grade 70". What the > heck is Grade 70? Is this like a super high viscosity - or what? > Thanks. >
Prix> > I grabbed some oil for the bike at Wal-Mart, it is Castrol Grand
viscosity> 4 Stroke Motorcycle Oil. I didn't think about looking at the
20w-> rating figuring it would be somewhere around normal ( 10w-40 or
the> 50). Once home I looked a little closer and it is "Grade 70". What
> heck is Grade 70? Is this like a super high viscosity - or what? > Thanks. > > Bill MT >
> > Just looking for a real explanation of what Grade 70 motor oil is. > Thanks. >
) But there is certainly a big difference between
the grades.
If it were me, I'd take it back and try to exchange it for one of the
other grades, which are listed in the KLR manual.
Cheers,
Matt in Boise, ID
--- In DSN_KLR650@yahoogroups.com, "billshel2003"
wrote:
> > I grabbed some oil for the bike at Wal-Mart, it is Castrol Grand Prix > 4 Stroke Motorcycle Oil. I didn't think about looking at the viscosity > rating figuring it would be somewhere around normal ( 10w-40 or 20w- > 50). Once home I looked a little closer and it is "Grade 70". What the > heck is Grade 70? Is this like a super high viscosity - or what? > Thanks. > > Bill MT >
On 4/13/06, mbarney wrote: > > Hi Bill, > > I found more info on Castrol's web site: > http://www.castrol.com/castrol/productdetailmin.do?categoryId=82915510&contentId=6004088 > > > > They also make it in 10W-40 and 20W-50. There is more data on the web > page on the link called "Product Data Sheet". One interesting > statistic given is the viscosity: > > Viscosity, cSt 100 C (ASTM D-445): > 15.9 (10W-40) > 17.0 (20W-50) > 27.2 (Grade 70) > > I can't claim to understand what that means. (Oh, sure I can; this is > an oil thread.
>Just looking for a real explanation of what Grade 70 motor oil is. >Thanks. > >Bill > > > > >
>Bill, I thought that was a typo, but Castrol does indeed make a "Grade >70" oil. An internet search turned up little information on it. >Castrol's web site shows it but tells you nothing about what it's used for. > >My best (semi-educated) guess is that it is oil meant for motorcycle >transmissions where SAE 30 weight oil is specified. The viscosity of 70 >weight gear oil and SAE Grade 70 (if there was such a thing) is >approximately the same.
70". >What the heck is Grade 70? Is this like a super high >viscosity - or what? Grade 70 should denote a gear oil rather than a motor oil. Motor oil SAE numbers run from about zero to 50 (maybe 60) while gear oil numbers run from about 70 to 150 (maybe 60 up) at least I can't remember a gear oil number above that range. Normally the highest number gear oil is 140 which is pretty thick. It is well not to confuse SAE gear oil and SAE motor oil numbers as they are on a different scale. The numbers indicate the relative viscosity within their range but the ranges are also different so as to indicate whether the oil is a gear oil or motor oil. An example is that a 70 weight gear oil is thinner than a 50 weight motor oil. Check the SAE Society of (Automotive Engineers) or oil company web sites if you care to learn more. This is the kind of information we taught in college courses but which was for background information so once people were aware of it, that was good enough. There is no application IMO for this information as long as you realize that the ranges are indicators to warn you if you grab the wrong oil container. Norm Norm __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com>Once home I looked a little closer and it is "Grade