I think I've read that there's been RS 1 thru currently 5 but not every number in between was a RS version. I think I've read there was 1, 2.5, 4, and now 5.
Is there an easy way to see what version my engines have?
Several are ERR upgrades in the past 5 years which I assume are 4.0. I also had 2 upgraded by TAS when they were in Canfield OH and am sure they were 4.0 as well.
I think my only RS5 is my B &O PWC F-3, but wondered if any others were 5.0 or less than 4 but don't know how to determine.