Another easy question.

[DunmireD001]

Hey everyone. I've got another easy question again. I'm about to do an oil change on my 2001 wr426f, and I had some questions about the oil. First, how much do these typically take (from empty, to plenty)??? my old wr450 was something like 1.75 quarts if I remember right. I would assume this isn't much different because the bikes are practically the same, but just wondering if anyone knew right off... The only reason I ask is bc my manual just says how to add oil and how to check if it's at the right level. It doesn't really give a good indication of how much...

Also this leads me to my next question of if I can use just regular 10w-40 motor oil? Again, my manual says to use 10w-40 for hotter operating temps. (Summer) and 10w-30 for lower temps.

I have always used yamalube, but I cannot get it locally and usually have to order it online. I do have a local autozone and oreilies, and I can pick any choice of regular engine oil I want there, but is there any real difference in using yamalube over some castrol?

[flyandride]

Not sure about the quantity, read the manual, but don't use just any old car oil.  Any 10W40 motorcycle oil will do.  I and many others use Rotella T6 synthetic 5W40 or Rotella T 15W40.  Both are sold at Malwart by the gallon.  

[FORMA MOTO]

- you can download a service manual for free on Yamaha's site

- .9 oil / 1.1 with filter change

- you can use any oil you want as long as it is not friction modified (JASCO MB rated) and as long as it is at least MA rated.