I have a 2001 cr125 and was wondering what base oil should i use right now i am using a 10w30 motor oil but i dont think that is right

you can use 10w30 or 20w50 motor oil. in any bike I`ve owned from a 72 Honda 350 to a 88 Goldwing 1500 and serviced bikes into 2004 I`ve used 20w50 Castrol motor oil without any problems at all. the amount your bike will need is marked on the case where you put the oil in. I think its about 2-2.5 quarts with an oil filter change.

I'm pretty sure the manufacturer recommends 5w20, but with 135k on it I might use 10w30.

i would 1st look into your owners manual to see what the chrysler corporation reccommends for your car, if you don't have one, i would use 10W30.

you can use 5w30 or 10w30 motor oil in it,and not hurt the motor.

Change engine oil regularly, every 3000miles or 3months, whichever comes first. Make sure to use an API certified SAE 10W30 in Summer and 5W30 in the Winter. If your Hyndai has extensive engine wear, 10W30 is a suitable substitute. You must not use 10W30 if temperatures are 20F and expected to fall.

You can use any of the following weights of motor oil: 5W30, 10W30, or 10W40. Personally, I use Mobil1 Synthetic 5W30 in my pickup. Synthetic is better for your motor (you can go 5,000 miles between oil changes with synthetic oils) but once you start using it it's better if you stay with it meaning every oil change you use synthetic oil.

The problem did not start untill the 10w30 Honda transmission oil went in. It isn't the 10w30 thats the problem. It's the TRANSMISSION oil as opposed to MOTOR oil. There is a difference. As I said before, the swelling may or may not go away.

Best wishes Ryan :)