Motoring Discussion > Ford Focus - E5 fuel
Thread Author: carmalade Replies: 3
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New Sat 20 Jun 26 16:47 
 Ford Focus - E5 fuel - carmalade
Thought I’d treat my 23 year old Focus to some E 5 petrol for Father’s Day . Have I wasted my money?
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New Sat 20 Jun 26 17:13 
 Ford Focus - E5 fuel - Manatee
Hard to say! The engine probably isn't the critical component in it lasting another 23 years.

But I always think they go better with E5/Super+. And when you have washed them.
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New Sat 20 Jun 26 17:45 
 Ford Focus - E5 fuel - Andrew-T
I don't think it would make much difference to a 2003 car. But we're advised to put E5 in 20th-century cars to avoid degrading the fuel pipework ?
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New Sat 20 Jun 26 18:51 
 Ford Focus - E5 fuel - Manatee
There is that. And rotting your carb diaphragms. And avoiding GL-5 gear oil because it dissolves bits of your gearbox. A minefield.
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