95 Octane

[Yullin]

Good morning :D

In South Africa we have recently had 95 Octane ( unleaded ) introduced at altitude.

Will my ECU change the timing automatically or will Toyota have to do it?

I have the 3ZZ-FE engine - same as the 1ZZ-FE engine except for the displacement.

I have been using 93 octane and have only done 6000km with the engine.

Any noticable performance improvement ?

Thanks :)

[CORZZA]

Yullin Iv never heard of adjusting the timeing with fuel change. But the ECU should do all that.

what 95 are you using? Sasol,BP,Caltex or Shell?

[Yullin]

Hello Corzza

Apparantly the 95 takes longer to burn and will require that the timing changes.

It is Caltex, few and far between though and costs about 15c more :o

What octane do most Corolla drivers use in Australia ?

Thanks :D

[xGSiR]

Most of the Sportivo owners use 98 Octane fuels for a lil more performance and fuel economy.

[CORZZA]

i put in the shell 100 octane today! drove around a while and the seems much smoother definatly more responsive!

[MR22ZZ]

I've been using 100RON since coming back from Qld. I'm going back to Vortex 98 as I haven't seen much improvement and it's about 6c/L cheaper.

but to answer your question about fuel over here, most corolla drivers (the everyday ones) use 91RON most here use 95RON premium and some use 98RON. Most of the 2ZZ-GE drivers use 98 RON.

[CORZZA]

iv only put in 98 oct .

if i cant go lower i wont.

[CAP]

The ECU will make the necessary changes if needed.

I the days of non EFI/ECU engines, they did/do benefit from changes to the timing if you know you'll only be using one type of fuel. However modern engines don't require this.