fuel mileage

[outsiderskip]

hi guys
has anyone noticed they are not getting the mileage out of their tank like they used to.Had tune up done thinking i had a problem ,mechanic advised me it all the crap they put into fuel there days.Has anyone else noticed this

cheers pete

[TheSaint]

No.. I get really good fuel ecomony out of my car but i do use the highest octane (Optimax-98 ron)& only Shell fuels. By paying that little bit extra each week which is only $5 (50L) I get extra 100kms a tank! If i was using normal unleaded (91 ron) it would cost me extra $5 on top of what i already pay to go the same kms..

So maybe change you grade of fuel you use & stick with one Oil company where you buy it from??

[StevenM]

As The Saint said, use high octane and you will notice the difference and the cost is nothing to worry about.

Also I tend to use only Shell and Caltex.

Cheers

Steven

[Chimo]

Can you use Hi octane in say 115 HP outboards and would you get similar results?

Thanks Chimo

[sid_fishes]

what iv,e noticed over the last couple of tanks in the rodeo is i,m getting better mileage than before and thats on regular unleaded, and i only use shell cheers ian

[TheSaint]

what iv,e noticed over the last couple of tanks in the rodeo is i,m getting better mileage than before #and thats on regular unleaded, and i only use shell # #cheers # ian

Shell has a new fomula they use now to make their unleaded so you get extra kms..

[outsiderskip]

just put some opyimas in
see what happens

pete

[Bundy_Burp]

Not wanting to burst anyones bubble but using a higher octane fuel than recommended for your vehicle can lead to the early failure of your catalytic converter due to the exaust gases being hotter than recommended for your vehicle . Sensors can also fail my workplace experimented with the higher octane fuel and burnt out 6 catalytic converters out a fleet of 13 vehicles also had 4 senors fail all of which was traced back to the fuel we now run the recommended fuel and have had no problems since .
I have no idea what the higher octane fuel would do to a outboard motor .
But I dont think I'll experimenet with my outboard .

[Feral]

If your using an ethanol blend expect your fuel economy to drop off as well.

[Feral]

Not wanting to burst anyones bubble but using a higher octane fuel than recommended for your vehicle can lead to the early failure of your catalytic converter due to the exaust gases being hotter than recommended for your vehicle .


Thats not an issue unless they start annual emission testing is it?

[Bundy_Burp]

Ah feral if your catalytic converter collapses like one of the ones at work did it will block off your exaust system then you and your vehicle wont go anywhere but I suppose you wont have to worry about what fuel you use either will you .
P.S. All queensland transport inspection vehicles carry emission testing units .

[Cheech]

I tried high octane in my AU falcon once. Had way worse economy and noticed a drop in power. I have a mate that did the same thing and had the same result. I don't know technically why as I would have thought that newish fords would be able to use it, but I do know the result in my car, so standard for me.

[Feral]

All queensland transport inspection vehicles carry emission testing units .

Yeah but you dont have to pass! ;D