75w90 (SYNTHETIC ONLY!) FOR EMPHASIS you must use synthetic oil.
I use Mobil 1 20w50 synthetic with no problems WAIT TILL ALL YOUR SEALS START LEAKING AND YOUR CLUCTH WILL START SLIPPING ,,, GUARRANTEED I GOT V STAR S\CLASSIC ,, AND THE BEST OILTO USE IS CASTROL SEMI SYNTHETIC BLEND
yes, synthetic can go in anything I run REPSOL 20w-50 in my 2005 Vstar 1100
Yes, you can use synthetic oil in our CR-V - but once you start using it it is best to continue using it at each oil change rather than switch back and forth.
No, it is not required but you can use synthetic if you wish. Just make sure you use the correct weight which is SAE 5w30.
yamalube
No. You need a good 4-stroke oil. Your car oil would protect the engine, but it does not have the ingredients nessecary to protect the clutch and transmission.
5w30 A1 semi synthetic or better still, fully synthetic oil. I use castrol magnatec 5w30 fully synth in my 2002 1.25 zetec and it runs sweet with it. Use a ford oil filter though.
Use Kawasaki 10W30 motor oil or some good dino oil in it until you get at least 110 hours on it then you can change to synthetic. We prefer the use of 10W30 Mobil 1 synthetic or Royal Purple but ONLY after 110 hours otherwise the engine will nevr break in and the engine will burn oil.
No, you can use conventional or synthetic. It is your choice.
10w30 or 20w50 is great
If you drive normally and use conventional oil I recommend you change oil and filter every 5,000 miles. If you use Synthetic oil the change it every 7,500 miles. Use a quality filter.