we both aggreed that it was poinless using it..
think about it..
have you ever seen valve seat recession that one can say was caused by unleaded??
the only way to know would be to run 2x identical engines the exact same milage in exactly the same conditions and check after maybe 40000 miles or so..
maybe it wastes valve in 20 thousand mile when with leaded it will last 100 thousand..
how much will lead additive cost over that time and will it be worth it..
si
Yes see above, same engine, same van, 4 heads over 4 years only the last unleaded head lasted more than 10K after I stoped using leaded.
I got the van with 180K on it cos the council were selling it of due to being leaded and leaded petrol was being fazed out.
The van did the bingo run twice a week, london to Swansea and back 4 times a year and london to Norwich and back twice a year pluss hospital visits doctors ect, only ever got used to transport somone in a wheelchair clamped in the back (hense driven like a granma) allways the same driver (me) just differant passengers all in wheelchairs
Other than that all me other motors have been converted to unleaded years ago, that's the only leaded motor i've run for any millage since 2000 ish.
the thing is a lot of ford engines had problems with valve seat recession.. many pintos ahve gone this way before we all used unleaded thats from my mate hes been an engine builder for many years..
in fact the v6 ford and v8's also suffer from it....
i really only can comment on my own experience though really and i have never had a vsr on any engine running on unleaded..
and like i say..
when or IF i had an issue i will get the valves and seats done then and not before i have an issue..
i certainly don't replace a perfectly good clutch before i tow a caravan just because it may wear out quicker
obviously its good to hear other peoples experience on this
si
