Tuesday, Apr 08, 2014 at 20:53
G'day Rod
The standard
fuel filtration should, by all accounts, be adequate.
Those that have added an additional filter are merely hedging their bets due to the fact common rail diesels are very expensively susceptible to dodgy
fuel.
Perhaps it's more about peace of mind, but I for one would far rather catch any crud or water as soon as possible.
Having said that, you must be mindful you don't introduce any restrictions to the flow rate of the
fuel as that can also cause problems. Due to their design, common rails pull up a heap of
fuel, a significant volume of which is returned back to the tank via return lines and usually a heat exchanger as it can be very hot after being compressed to a zillion psi.
So if an additional filter is added, hose size and filter micron size need to be taken into account. These aspects are adequately covered by the reputable mobs that flog the extra gear e.g. Diesel Care et al.
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