2000 1.5 how long for petrol to deteriorate ? - Car
In a car doing say a low mileage of 1000 to 2000 miles a year, how long would it take for the petrol to deteriorate to a point where it could cause harm to the engine i.e a 12 gallon tank would last a max of 131 days at 30mpg.

Edited by Pugugly on 11/05/2008 at 18:27

2000 1.5 how long for petrol to deteriorate ? - Peter.N.
I know its not quite the same thing but my lawn mower/hedge trimmer / strimmer / chainsaw, always seem to and run fine with the petrol left in them from last year.

Edited by Peter.N. on 11/05/2008 at 19:22

2000 1.5 how long for petrol to deteriorate ? - Victorbox
I've started a car with half a tank of 4 year old petrol with 2 gallons of new juice sloshed in. 4½ month old petrol is not going to be a problem in your example. If you are worried don't fill it right up & stick some fresh fuel in ever few weeks.
2000 1.5 how long for petrol to deteriorate ? - jc2
As long as the engine runs,the fuel is OK.
2000 1.5 how long for petrol to deteriorate ? - Car
Thanks for the replies, will either not fill up to the top or will top up every five weeks so old petrol is mixed with new petrol.