I'm talking days here and not years

The reason i ask is that lately when i get down to below half a tank the car does'nt seem as urgent as it usually does and then when i fill up again (Optimax+NF) its flies again

Now i know i'm not imagining it and temperature conditions don't come into it, so i must be going mad then

Scott

 

yep the men in white coats will be coming for you soon
but seriously i know that you get a lot of ****e at the bottom of the tank with diesel so its not a good idea to go to low on a tank.
Maybe you need youre tank cleaning out???.

 

Cleaning already! its only 9 months old

Could i get this done on warranty and would it affect my insurance

 

petrol does go off esspecially high octane fuel like we all use (optimax)its the additives they put in to raise the actane rating that goes off , but i would not have thought it would go off in the time it would take to use half a tank ?

i fill up around 2-3 times aweek so mine never gets chance to go off

 

Along the same lines as Scott, does NF octane booster "go off"?
I'm asking cos I've a couple of bottles sitting in my garage that I haven't opened in a couple of months?

Cheers,

Rob.

 

Soz 4 da thread hijack but does the NF say on the bottle it's CAT friendly also?
Si
PS cant say as i notice optimax going slower 2wards end of tank & i usually fill up ever other week, maybe it's kuz i drive so slow

 

Scott,

Im told it goes off great if you put a match to it.