I've found a great source online finally. www.buymoto.com has all sorts of oils, lubes, filters. Prices seem OK too. Just have shipping involved, but no sales tax.

Question is: I'm at my first oil change & want to stay with a mineral based oil the first couple of changes. Then switch to semisynthetic or synthetic. Is the Repsol 15W-50 mineral based oil OK for this? Owners manual says 10W-40 is the oil viscosity of choice. Am I OK with Repsol 15W-50 mineral based oil?

Thanks in advance!

 

The book calls for 10w-40 because of parts tolerances and lab testing. Why would you want to run a different weight? Stick with Honda GN4 or HP4 10w-40.

 

Interesting conversation with Repsol tech rep. The 15W-50 is fine, he says. Says it's best breakin oil one can use - racers use it, etc.

However, I'm going to stick with 10-40 ProHonda oil for first 2 changes due to warranty issues alone. I don't want to deal with any repercussions if I have an engine warranty issue I want to be able to prove I followed the book, etc.

Then, I'll switch to Repsol 10-40 synthetic.

 

Yeah, definately stick with 10w-40 for sure, probably doesn't matter what the brand.