Why shouldn't diesel fuel be stored for long periods of time?

Some time ago you warned against storing a spare can of diesel for too long. Now I have a diesel car I would appreciate a repeat of that advice.

Asked on 28 January 2012 by MW, Hadleigh

Answered by Honest John
You can find globules of emulsified fuel and condensation appearing in it, particularly the bioethanol element of biodiesel, which is hygroscopic.
Similar questions
I always keep a couple of gallons of diesel as a stand by, but have not used it for about four years. Can I use it now or is there a limited time before it deteriorates?
Two tears ago I threw my (until then) well maintained late 2006 Mercedes E-Class 320 CDI Avantgarde estate with 140K miles into a garage without any preparation. I have recently returned to the country...
I'll be taking my 2008 reg 1.6 VVT Renault Megane cabrio off the road for the winter. It'll be stored in a good dry garage and the petrol tank will be full and dosed with inhibitor treatment. Handbrake...
 

Ask Honest John

Value my car

Save £75 on Warranty using code HJ75

with MotorEasy

Get a warranty quote

Save 10% on GAP Insurance

Use HJ10 to save on an ALA policy

See offer