Tups's 1982 Ford Escort Mk3

[Tups]

Keep in mind that we use a different octane rating. 98-octane in RON is just 93-octane in AKI, the system used in the US.

[IMBoring25]

Yeah, the sticker on my bike would indicate it should have premium to the uninitiated, but it is supposed to take good old 87 on the (R+M)/2 scale.

[94Corolla5Speed]

Yeah, the sticker on my bike would indicate it should have premium to the uninitiated, but it is supposed to take good old 87 on the (R+M)/2 scale.

Forgive the off-topicness, but what kind of bike do you have?

[IMBoring25]

Vulcan 750.

[LHOswald]

Keep in mind that we use a different octane rating. 98-octane in RON is just 93-octane in AKI, the system used in the US.

93 is what turbo cars use though. i've never seen a non-turboed car require anything more than 87

[ElectroGhandi]

A lot of naturally aspirated cars require premium gas. Jaguar X-Type and XK8, BMWs, etc.

[watkins]

A lot of naturally aspirated cars require premium gas. Jaguar X-Type and XKR, BMWs, etc.

Exactly. Anything performance oriented and/or with high compression will use 93 octane

[Tups]

As I might have explained before, the engine in my car was originally designed to run on 97-octane (RON) leaded gasoline. However, since it is no longer available, I use the next best thing, which happens to be 98-octane gasoline and lead replacement additive. Using a fuel with smaller octane rating would result in knocking.

Keep in mind that the regular gasoline sold here has an octane rating of 95 RON or 90-91 AKI. "99+"-octane premium, which would be 93-94+ in AKI, is also readily available. Couple of days ago I also saw a gas station that sold RE85, which has an anti-knock index of 100-105.