(24-04-14, 09:18 PM)richfzs link Wrote: Don't know if it's true or not, but I heard that you can get away with running a bit of diesel through a petrol engine, but not the other way round.

Hope it's not true, Bob...

(24-04-14, 09:50 PM)unfazed link Wrote: True, petrol engine will run with a bit of diesel. A few years ago when coming back from the UK having bought a Fazer 400 for my eldest son, we were diverted off the M4 around Bristol, we stopped at a small petrol station and filled the newly bought Fazer 400 and a 04 model CBR 600 from the same petrol pump. By the time we got to junction 23A there was some amount of smoke from both bikes, we stopped at Junction 23A and discovered we had diesel contamination, it had to be contamination as both bike were close to reserve when we had stopped in the Bristol and we filled from the same petrol pump. Since we had no idea how to find the station we filled at, we siphoned about half of the tanks into cans we bought in J23A filling station and filled both tanks with fresh petrol.
Trusty Fazer 400 was bit slow starting, but there was no way we could start the CBR.  We put the CBR on a recovery truck to Pembroke, pushed on to the ferry and had it collected in Rosslare by a friend in his van. The Fazer 400 ran with out issue home to Cork. We had to drain the everything out of the CBR and fit new plugs before we could get it to fire again.  :rolleyes

(25-04-14, 10:57 AM)hightower link Wrote: To hijack the thread a bit, I have about £15 worth of petrol I moved in to an old tank for temp storage while I worked on the Fazer. Now I want that £15 back in the Fazer tank but not sure on the condition of the petrol (it should be fine, only been a few weeks but not sure if the inside of the older tank was rusty etc).


Should I just tip it all back in, or bin it, or run it through some sort of strainer or what?

(26-04-14, 11:40 AM)dazza link Wrote: Years ago back in the early 80's when diesel cars first came onto the market my old boss who had a brand new diesel Citroën used to mix a bit of petrol with it. Reckons it helped it start in the cold weather. Don't know whether  there is any truth to it or not. He ran a boat yard and did the same to his old chugger boat too.

(26-04-14, 11:24 AM)rustyrider link Wrote: As said, a bit of diesel in a petrol engine will just make it smoke a bit but won't do any harm.  A bit of petrol in a diesel engine won't do any harm if it is an old tech diesel engine but if it is one of these modern high pressure common rail things then it's different.  If the engine isn't started and all the fuel is drained out, it isn't a problem.  If the engine is started and run then there may be no problems now but it will almost certainly lead to problems in the future.  Daughters boyfriend had a TDCi Mondeo that decided it was going to not like starting.  Took it into a local garage to be checked over and they recognised it.  A month before he had bought it, it had been in as the previous owner had put petrol in it.  It was going to need new injectors at £130 each and a new fuel pump at £800 to repair the damage.
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I been told the petrol has a lower bursting point than diesel so when the petrol goes through the injector designed for diesel it blows it to bits, the diesel also acts as a lubricant for the high pressure pump, the petrol washes this out and causes all sorts of bother.