S100

[grog]

S100 engine brightener/blackener has been my go to for a lot of years. Cant get it anymore without paying huge freight from overseas. Has anyone used the Harley stuff? $25 at their shops.

[Notty]

S100 engine brightener/blackener has been my go to for a lot of years. Cant get it anymore without paying huge freight from overseas. Has anyone used the Harley stuff? $25 at their shops.

I got the Harley stuff and it's great - covered up the label so my mates don't see !! 

[Daytona]

I've got the Harley stuff as well,sent the missus in the shop for it,

[KoZi]

I have S100 - is doing great job 

[froudy]

I got the Harley stuff and it's great - covered up the label so my mates don't see !!