oil for my 787 twins w/ raves ?

[1800chall_tim]

i purchased my challenger 1800 w/ twin 787's (with raves) last year. it came with 4 gallons of brp xps synthetic blend oil. i have read many posts that say to use only full synthetic oil with raves. here is my question, can i go this season without changing the oil i use? i have cleaned the rave valves and replaced the oil filters. is build up on the raves the only issue with synthetic blend oil? 2 stroke xps synthetic blend oil is a low ash, api-tc oil right?

 

[RFoster130]

I think you would be ok. It's Not going to blow your engine or cause any damage. If it was me I would just pull the valves and clean them about halfway through the season.

 

[Dr Honda]

the XPS synth blend is fine. The only draw back is you may have to clean the RAVE valves half way though the year.

 

[1800chall_tim]

if i do switch to full synthetic in the future would it be harmful to blend the full syn. with the semi. synthetic if they are both xps?

 

[LouDoo]

Yes you can just switch as long as they are both XPS.

Lou