Quote:
Originally Posted by euromodder
That's for old-skool diesels.
The very delicate current "high efficiency" crop can't handle alternative diesel-like fuels anymore.
Heck, mine has trouble with the mere 5% bio-diesel in our regular diesel ...
Especially the after-treatment systems are trouble-prone.
Today's injectors will have trouble with even the smallest impurities in the fuel.
So will the high pressure pumps.
How many common-rail diesels do you know that run veggie oils ?
How many of those have a diesel particulate filter ? - not that these do any good, on the contrary, but they're mandatory regardless.
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Euromodder,
You are correct on this common rails can not handle the biodiesel due to the injectors and high pressure pumps. To me that is the biggest negative to them despite being more efficient than there IDI cousins.
The alternative is the M-TDI you get the best of both worlds! Then to cut the pollution factor just utilize a water/methanol injection system. The M-TDI you will see on the 1.9L and 1.6L TD. They are a hybrid design and work great. They are popular with conversions and dune buggies since there is no need for all the electronic control stuff! The 1.6L TD eco was very fuel efficient and can be had for minimal cost used. The M-TDI would be very useful in this engine and would boost efficiency. Put this engine into the right low mass vehicle get it loaded properly and you have a vehicle capable of some great MPG numbers with reasonable performance.