Poor quality or contaminated fuel is usually 99% of the time cause by transport or site storage. Pick your servo, not the brand of servo. A newish, busy servo with high turnover is a safer bet.
14 years (& 300,000km) in a mechanical injected diesel and I've never been able to spot the difference between brands.
After 5 months and 17,000km in a brand new Dmax. I've been using Shell 95% of the time. 6-7 tanks has been the more expensive 'premium' diesel.
Still can't spot a difference and economy hasn't changed a bit...
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