1995 Mazda Autozam Carol with a Suzuki F6A 657 cc 3 cylinder N.A. single cam engine. Didn't come with a manual, not that I can read Japanese anyway. Wikipedia says a range of 8.7-11:1. Anybody here that is more familiar with those engines have an idea? I doubt it has a knock sensor as it has a mechanical distributor and pretty sure is carbureted. I filled it up, all of 6 gallons, with 87. Don't notice any knocking yet, but then, it's hard to hear anything at speed.
What octane gas for this Japanese kei car?
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87 should be fine 
If you hear any knocking, add some octane booster
If you hear any knocking, add some octane booster
If you don't hear/feel loss of power due to detonation, 87 is fine
I'd consider 93 if it was the Turbo variant, but for the NA regular should be fine
Try a tank back to back of each, see if there's a difference?
I'd consider 93 if it was the Turbo variant, but for the NA regular should be fine
Try a tank back to back of each, see if there's a difference?
By carb do you mean TBI?
Between the wind and road noise, it's hard to hear much of anything. I haven't checked if it's carb or TBI but no fuel rail for FI,
Octain requirements | Japanese Mini Truck Forum
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Regular gas in Japan is 89 RON which is actually less octane than our 87 AKI.
I doubt that they would make economy cars that require premium.
I doubt that they would make economy cars that require premium.
We owned a 1995 Mazda Bongo van in New Zealand during our year there (2003/04). It was a JDM vehicle, as so many vehicles in NZ are.
It was carbureted (not TBI) with a manual choke.
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