Why would a Honda dealer recomment 5w20 vs. 10w30 motor oil called for in the s2k manual? Is it safe to use?

 

I wouldn't use it. I want the extra viscosity for high RPM work...

 

b/c the people at your dealership are idiots, only use 10w30

 

If you want less resistance and more lubricant the 5w20 would make sense, wouldn't it?

 

5w20 is thinner i believe, you want a thicker substance that doesnt break down as easily as the thinner oils do(especially during high rpm driving)

 

Thanks for the input!

 

It would be o.k.if you drive in a very cold climate.

 

I thought that if you were in a colder you would still use 5w30? instead of 10w 20 that is.

 

10W-30 normal temps down to -20'C
5W-40 for temps below that

straight from the (EU) manual.

Not that we can buy 10W-30 here, so $tealers spec 10W-40.

5W-20 probably isn't ideal, but could work depending on the situation. Isn't that the recommened stuff for Pilots?

///Robin

 

You are correct. All newer hondas use 5w20 so they assume the s2000 uses the same oil.