Any opinions on this stuff? Carlube Triple R Semi Synthetic Engine oil. Reviews seem okay and the price is right!

I would go for it mate it's the correct grade & semi synth.

Regular changes will ensure long life as normal

Is it instore or online?

Ziggy

Not sure about online availability. It's in my local store, reduced from £10 to £7.50, then to £5. Also 5w30 for the same price.