marlboro man Posted June 4, 2012 Report Share Posted June 4, 2012 :sexytime:any one run 10w40 in colder months 20w50 in hotter if so how has your street bike held up just wondering this is the way i run oil in atvs & was thanking of running it the same in my 06cbr600f4i Quote Link to comment Share on other sites More sharing options...
serpentracer Posted June 5, 2012 Report Share Posted June 5, 2012 water cooled you only need 10w40. the thicker oil will protect a hotter running air cooled engine better.but a water cooled engine doesn't need it. and you'll get better acceleration/power and mpg. Quote Link to comment Share on other sites More sharing options...
marlboro man Posted June 5, 2012 Author Report Share Posted June 5, 2012 water cooled you only need 10w40. the thicker oil will protect a hotter running air cooled engine better.but a water cooled engine doesn't need it. and you'll get better acceleration/power and mpg. thanks:cheers: Quote Link to comment Share on other sites More sharing options...
ReconRat Posted June 5, 2012 Report Share Posted June 5, 2012 Most of the need for different oil weight for different parts of the year went away when multi-weight was invented. When single weight was used, it was a necessity. The exception is if you move to someplace like Alaska or sub-tropic Sahara. Quote Link to comment Share on other sites More sharing options...
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