tftimm

I put 93 in my 92 SC400. I wouldn't consider anything else...

BenFTW

93 alllll day.

levie

iTrader: (1)

i use nothing lower then 91. im 16, and it honestly sucks. but its worth it. you gotta take care of your car

yOitzsean

I only run 91+. very, very rarely I get 89 and even then, I don't fill it up with 89. Hope this helps!

Durrby

iTrader: (3)

Not sure of the previous history but i've ran 93 since the day I picked mine up over 2 years ago. I also try and stick with Shell every time but will go to Chevron or Mobil if I have to.

levie

iTrader: (1)

hahah i always go fast gas! gotta get the liter log

LEXXIUM

iTrader: (1)

I run a 93+ and never looked back, my engine runs better quieter and I get a better fuel economy. This is not my dd though and I only put 4-5ka year on it

formosa927

600k with working needles? wow!

I used 91 for the 92 sc400... i am just afraid the old knock sensor + OBD1 system is not as sensitive and durable as current one. a knock sensor cost at least $150.....toyota recommend premium fuel for a reason. unlike newer OBDII toyota...they just say for maximum performance premium fuel is recommended but not required.

Klaus

iTrader: (1)

89 octane. The compression isn't high enough to justify 91 with modern fuels. I've observed no significant difference in performance or efficiency

xspsi6

iTrader: (31)

This hits the nail on the head!

v8soarer91

if anyone is so worried about the fuel they are putting into their car go out and buy a piggyback and have a map for every type of fuel.

in aussie 91, e10-94, 96, 98, 100, e85-105.

so 6 different maps