V Posted May 18, 2004 Share Posted May 18, 2004 As I only drive my car occasionally and not everyday, what would be the best way to leave the fuel (Shell opti-max) in the car? For the longevity of the fuel tank I suppose a full tank, but in relation to the Octane deterioration over time would this be better in a more compact environment (I am assuming evaporation) ie. full tank, Or, Better leave it half empty/full so that I am re-fuelling with newer fuel rather than topping up older fuel? I would say I use half a tank a week or 2 depending on weather. Many thanks Stephen V Link to comment Share on other sites More sharing options...
Syed Shah Posted May 18, 2004 Share Posted May 18, 2004 I think keeping it quite low and topping up each time is best in your situation, otherwise you could be on the same tank of fuel for a very long time: Not good. Link to comment Share on other sites More sharing options...
V Posted May 18, 2004 Author Share Posted May 18, 2004 Cheers for that:) regards SV Link to comment Share on other sites More sharing options...
ardasaliah Posted May 18, 2004 Share Posted May 18, 2004 Supra has plastic tank. No rusting! Link to comment Share on other sites More sharing options...
Syed Shah Posted May 18, 2004 Share Posted May 18, 2004 Yes, we know that, but it still does not stop the fuel becoming stale and loosing octane over time. Link to comment Share on other sites More sharing options...
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