Type S fuel recommendation.

Post by **tom023** » Wed Sep 06, 2017 5:45 pm

Quick question as I could not find it on search.
What minimum RON rating of fuel needs to be used in a Type S?
I'm sure many would use 99RON but here in Spain I can only get a maximum of 98RON premium. If 99RON is obligatory for it to run right then I need to use a 98RON fuel/octane booster mix.

I don't have a TypeS but I do want to run the TypeS ECU in my h22a8 vti.
cheers guys and girls.

Dennis van dijk · Post by **Dennis van dijk** » Thu Sep 07, 2017 4:51 pm

here in holland the max we have is 98

always get 98 in my jdm type S

only got a h22a7 in it now but with jdm type S ecu

Post by **tom023** » Fri Sep 08, 2017 12:42 am

Thanks for the reply Dennis, it's good to know it runs fine on 98RON.
Does it say what minimum fuel is needed inside the type S fuel flap? On my vti it says premium / min 95 but when I looked on google I couldn't get any photos of the same spot on the type S.

Dennis van dijk · Post by **Dennis van dijk** » Fri Sep 08, 2017 3:53 pm

Minimum is 95

But i always get 98 from bp

Thata the best we can get in europe

Only my enigine in the type S needs p28 and remap some day

Post by **tom023** » Fri Sep 08, 2017 4:02 pm

Wow, i didn't expect it to say min 95 for the typeS. I thought the extra 20bhp came from the ecu being tuned to use a higher octane rating

Good to know that I can use standard 98 though! It saves me shelling out for Silkolene Proboost and the likes.

Post by **Vtecmec** » Fri Sep 08, 2017 4:48 pm

It'll run fine on any RON as the knock sensor will trim the ECU map accordingly, though at the expense of a little power loss.

Post by **tom023** » Fri Sep 08, 2017 6:16 pm

Vtecmec wrote:It'll run fine on any RON as the knock sensor will trim the ECU map accordingly, though at the expense of a little power loss.

Of course Vtecmec, I didn't state the question correctly. What I should've said was: "What is the minimum RON recommended for the typeS so that it can run at its full potential?"
What I didn't want to do was to put 98 in the car and and have the knock sensor hold it back, or on the contrary, use an octane booster to achieve 99RON (by rule of thumb) and it just be wasted.

Post by **RattyMcClelland** » Fri Sep 08, 2017 8:03 pm

Octane booster....meh . Don't really work.

Post by **tom023** » Fri Sep 08, 2017 8:57 pm

This is an interesting read Ratty
http://www.fuelexpert.co.za/Octane-Booster-Shootout.php

I thought the same as you. I think it's more they don't do nearly as much as you think (or as the companies say). In this case it would be used to avoid knocking and bring the fuel up.to standard. Not as "magic nitrous"

Post by **RattyMcClelland** » Fri Sep 08, 2017 9:11 pm

Water and meth injection 108Ron.