Have done a little research but cannot come up with a solid answer to my question.

Will 8.5x18 et 40 fit my octy with any problems? I'm currently running weitec coilovers and would want to go lower when I get new wheels. They do et45 too but want a little bit more poke. Would et40 be too much with 8.5j? Tyres will be 225/40/18

24mm extra poke -that's a lot...

They will fit just fine.

I run 8.5x18 et25 on 215/35/18's which gives me a little poke.

You'll be fine!

SNH, how low are you running on that setup?

SNH, how low are you running on that setup?

Standard height at the min but it will be run low once Coilovers are sorted

Guess it will need fender pulling to then ;-)

Some kind of lowering shouldnt even be optional when running bigger wheels, bigger wheels+not lowering= farmer ;-)

Guess it will need fender pulling to then ;-)

Some kind of lowering shouldnt even be optional when running bigger wheels, bigger wheels+not lowering= farmer ;-)

Yeah, it will require a little

House move has put a stop to my spending for now :(