10w40 vs 20w40

Well soo i didnt read my manual before i changed my oil and i put 10w40 in to. Its recommend 20w40. Should i change it soon or u think it will be fine?

 

You will be fine untill we start getting into summer when the temps you ride in don't go much below 60*F the manual says 10-40 under 60 I think then 20-40 above. If you are like me and ride from well The last two weeks until we got more snow you will be fine with the 10-40. I do the filter and oil preseason and then just change to the 15-40 when the weather gets warmer. You will know when it's time as the bike will shift difference

 

Thanks luckly it wont get that warm anytime soon haha stupid weather....

 

You should be fine. I will be moving to 5W 40 next time I change mine. I'm moving to Rotella T.

The first number gives a relative number of how easy it will allow the engine to turn over. The second number gives the viscosity.

Check out the Motor Oil Bible to learn more. It gives a pretty detailed explanation of viscosity. I have a couple of posts that have a link to it.

 

Goin synthetic huh Joe....

ssshhhhh that what I have in my X right now the synth 5-40W for this time of year the bike absolutely loves it!!!! I ran the Rotella 15-40W all last summer and it did fine with that as well. I have come to like both the price and the way the bike acts with the Rotella. I was going to wait until I had a few hudred miles and more riding conditions before I put out my tak eon the 5-40W oil. But the 15-40 worked solid all last year for me.

 

I'm running Mobil's motorcycle synthetic in 10W 40 now and haven't had any problems. I'm a fan of synthetic oil, but the Mobil stuff is way to expensive for the long haul. At $10.50 a gallon, Rotella T is for me.

 

My manual says 10W-30 in cooler temperatures and 20W-40 in warmer temps. I just combined the two and run 10W-40 all the time. Never had a problem. I use regular dino oil and change it every 2,000 miles.

 

10w40 valvoline 4 stroke motorcycle oil.

 

thats what i have in my bikes havnt had a problem either just thought id throw the question out since i read it in my manual