De-tuning a xud for economy?

[Piggy]

Ive done, well, must be 50k miles on wvo/svo with 5-10% petrol with no issues at all. Yes too much will cause issues. If you are worried just put in a litre for every 20 of wvo, which is what I do. Along with a splash of two stroke oil and cetane booster

But the in tank strainer is a possibility. For the sake of 10mins, its worth a check.

I aslo change my fuel filter about every 2k miles.