I have been given this from a garage clear out .it's unopened. It's a 15/50 .I realy have no idea how old this can is .what's thoughts .
Should I use it on my old R100/7
Bearing in mind it’s probably more than 70 million years old and therefore won’t have a shelf life I definitely wouldn’t use it if the seal on the can lid has been broken. If the seal is ok then I wouldn’t hesitate to use it.
I had a service from Boxerman many years ago. He put GTX in, and the bike ran noticeably better. I've not used it since then. I think the formula has changed since then.