Oil change yamalube to synthetic

[Jatta]

I'm switching away from Yamalube oil as it is really difficult to get where I live. The jetski dealer I spoke with suggested to put Motul 7100 full synthetic. Did some googling and found out that Yamalube is mineral based oil. Can I just carry out oil change as normal, knowing there will be some oil left in the engine, and just fill in with Motul oil? There is no way I can get all out.
Are those two going to react in some unwanted way? Are there any issues expected?
I drive Yamaha sx190

 

[FSH 210 Sport]

I'm switching away from Yamalube oil as it is really difficult to get where I live. The jetski dealer I spoke with suggested to put Motul 7100 full synthetic. Did some googling and found out that Yamalube is mineral based oil. Can I just carry out oil change as normal, knowing there will be some oil left in the engine, and just fill in with Motul oil? There is no way I can get all out.
Are those two going to react in some unwanted way? Are there any issues expected?
I drive Yamaha sx190

You should be able to…check MOTUL’s website if you want to be sure. It’s good oil I used it for a long time in my bikes.. but is it marine rated? I know Amsoil has a marine oil that’s what I use now in my boat.

 

[Jatta]

Yup. Motul is not marine graded. Managed to find Yamalube marine oil but only 10w30. Are any of you using this on your boats?

 

[Brad_Ct]

Yup. Motul is not marine graded. Managed to find Yamalube marine oil but only 10w30. Are any of you using this on your boats?

Check on Amazon, I just bought a couple gallons.