Lard smelled like crackling as I was driving down the road and there was a bit of white smoke but it worked ok, performance seemed unaffected (cars incredibly slow normally) but I was a little wary of the fuel lines clogging. I had a baby's bottle heater on the fuel filter and removed the pre-filter and this was in the summer so it was reasonably warm.
Best laugh of the day Simon
hi, i registered with HC&EXCISE to use veg oil, designed the pere heat kit and change over to normal diesel for starting etc. i then found out from an educated experienced source that major pump failure occurs and replacement / repair costs put the idea into short term gain long term pain. unless it's an old banger and you intend getting rid once the pump fails. replacement pumps and or repair are circa £1500. the filters suffer and the "o-rings" are nitrile phenolic rubber and will be attacked by vegioil, sucking air and then leaking. herbiemercman.