Just a quick one, really - making sure I'm doing the right thing (Or not, I'll hopefully soon find out).

Recently bought myself a GB270, so a Hawkeye WRX with a PPP and a few extras, car is completely stock as far as I can tell on the stock power (270ish BHP)

My question is what should I be fuelling this with, I've always been under the impression I'd need super unleaded and have done so with Tesco Momentum, only whilst filling up today I've noticed the fuel cap specifically states Regular Fuel only and not to use anything higher...

So... what should I actually be using and would it harm me to continue using 98/99RON fuel or drop down to 95 Regular?

It certainly wont harm it to run on 98 RON and has the benifit of being E5 and not E10. So kinder on the fuel system.

If your car was running fine I would continue to use the superunleaded 👍 E5 not E10 and some of them, eg Shell, have cleaners in them

run it on 99, tesco or shell only.

That’s odd as my 98 wagon says 98ron on my filler flap 

9 hours ago, Robtama said:

That’s odd as my 98 wagon says 98ron on my filler flap 

according to subaru you can change oil at 20k miles and the 2.5 is perfectly fine and doesnt have any faults,,,,