Jap 13bt on premium?
#1
Junior Member
Thread Starter
Join Date: Nov 2007
Location: Australia
Posts: 30
Likes: 0
Received 0 Likes
on
0 Posts
Jap 13bt on premium?
I got a dead stock jap s5 turbo and ive been using 98 octane since i got the car, but recently i couldnt find any 98 so i settled with 95. The car seems to be running better, so i would like to continue to use 95.
So i did some research. Ive heard alot of different things. Ive heard i can easily manage 95 octane fuel on a stock 13bt without risk of knocking but i also heard Japan use higher octane fuel so the cars timing would be set for higher octane, hence, at least 98 octane should be used.
So my question is; Does anyone know if there is any chance of knocking on a stock jap 13bt?? What will happen if i put regular unleaded?
If so, i will continue to use 98.
thanks guys
-zol-
So i did some research. Ive heard alot of different things. Ive heard i can easily manage 95 octane fuel on a stock 13bt without risk of knocking but i also heard Japan use higher octane fuel so the cars timing would be set for higher octane, hence, at least 98 octane should be used.
So my question is; Does anyone know if there is any chance of knocking on a stock jap 13bt?? What will happen if i put regular unleaded?
If so, i will continue to use 98.
thanks guys
-zol-
#3
Former Moderator. RIP Icemark.
91 in the US is the same as 96 in europe/ Aus/NZ and 92/93 is the same as 98.
Subtract 5.5 points from Euro/Aus/NZ ratings to get the same gas as the US rating.
It is designed to run on unleaded regular in Japan. Using premium is only wasting money unless there is increased boost or other tuning issues to overcome. Generally rotary engines should be run on the absolute lowest octane you can find that the engine does not knock (ping) with, for the most power. Higher the octane, lower the power in a rotary.
#4
Junior Member
Thread Starter
Join Date: Nov 2007
Location: Australia
Posts: 30
Likes: 0
Received 0 Likes
on
0 Posts
It is designed to run on unleaded regular in Japan. Using premium is only wasting money unless there is increased boost or other tuning issues to overcome. Generally rotary engines should be run on the absolute lowest octane you can find that the engine does not knock (ping) with, for the most power. Higher the octane, lower the power in a rotary.
-zol-
#5
It is designed to run on unleaded regular in Japan. Using premium is only wasting money unless there is increased boost or other tuning issues to overcome. Generally rotary engines should be run on the absolute lowest octane you can find that the engine does not knock (ping) with, for the most power. Higher the octane, lower the power in a rotary.