Is it 'OK' to use Castrol GTX 10w-40 for my 2001 ds 650? If not, what is good?

 

You must use a oil for a wet clutch. Regular motor oils have a friction reducer that makes the clutch slip. If you get any motorcycle oil you will be fine. I personally use Valvoline 20W40 motorcycle oil from Atosoze. During the winter I will use a 10W30. A lot of guys here use Honda HP4 oil. I think that is what its called anyway.

 

Castrol GTX is very good oil. Even though it's for a car it's works surprisingly well with the clutch. I use Valvoline motorcycle oil after toasting 3 clutches so........

 

I currently have Bombardier Mineral Based 10w40 in my DS. I'm planning an oil change this week...

Should I stick with the Bomb stuff, or get some different stuff...And what viscosity and weight of oil should I get for the summer??

And how expensive are the oils you guys use?

Thanks

 

I didn't think the bomb oil was mineral based..... But if it's mineral based just stay with that then. I pay about $3 a quart for the Valvoline motorcycle oil. You can get this from autozone or just about any car parts store.

 

Nice Icon!! lol

 

I have been using castrol gtx 10w-40 in my ds for 2 years. Love it and love the price!

 

Is there only one kind of Castrol GTX?

We have them where I work (gas station) for cars..is it the same one??

And 10w40 is good for summer?

 

Yep, it's the same as the oil you use in cars. I use 10w-40 year round in Texas.

 

Ya there is only one kind of Castrol GTX. You can use 10-40 for summer if you want but I prefer 20-50 for summer and 10-40 for winter. Just my thing........ Works good and cost is really cheap but I switched to Valvoline Motorcycle oil.