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I used to think 91 and 95 in our state were very similar just more expensive BUT there is real difference with the higher octane. Definitely goes better. I usually top up with 91 and fill up from 50% with the 95. (91 is USA 87 and 95 here is your 91.)
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Mustang5ohMan

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I used to think 91 and 95 in our state were very similar just more expensive BUT there is real difference with the higher octane. Definitely goes better. I usually top up with 91 and fill up from 50% with the 95. (91 is USA 87 and 95 here is your 91.)
So you split between regular and premium?
 

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Yes if there is good price (we have a app where you can see the prices for the next day) I might top up a 3/4 tank with the lower 91. If it is a half tank I fill up on 95. Just saves a bit. Our fuel costs about 60 USA cents a litre (about 2.40 a gallon) so if you can save a bit.....
 

Mustang5ohMan

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Yeah here since I’ve had my car I’ve been switching between Regular fuel and Premium fuel (87/93 MID is 91).
For myself personally 87 seems to do fine however it appears I get the worst gas mileage. The engine states you can use 87 just fine, the 93 moniker is for better performance however doubt you’d see any difference in daily driving unless you track. I’m going to use the 87 as the manual states shouldn’t be any issues.... at least warranty wise.
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