Very silly person

[throdgrain]

On saturday a lad came onto our bike shop, and said, in his best Jafaken accent "meet, my scooter what I as bought from you. It as got oil all over the back of it."
So, a mechanic goes out to look at it. "No, its not oil mate" he says "its water."
To which our learned friend says "but meet, it never 'ad water on it when I bort it, where is dis water comin from, the engine?"
"no mate, thats the mudguard. Its raining. Its rainwater on your bike"
In fairness to the mechanic he managed this with a straight face, but it does make me wonder about the yoof of today

 

[TdC]

your mech's a decent sort if he can deal with yoofs without cracking up a bright spark your jafaken wasn't heehee. I'm afraid it won't be the last time though :/

 

[bigbb]

What a twat.

 

[Alan]

Tell me about it - got myself a car last week from the local second hand dealer, and as with all newly purchased cars it came with a tea spoon of petrol - so filled it up on the way home £50 (bloody government) anyway driving the car the next day it stank of petrol, and when leaving work noticed a small damp patch under it too.

Was all set to call the dealer and bitch when someone at work pointed out because i filled it up to the brim petrol leaked through the overflow holes and the car was fine.

I felt such a

Smell went the following day and no more wet patches - so i guess he was right

 

[TdC]

not as bad as an engineer I had over here the other day who'd filled up his brand new company car with petrol and wondered why it didn't work. until he discovered he should have filed it with diesel

 

[ECA]

Smell went the following day and no more wet patches - so i guess he was right

QUOTE DB GO!

 

[throdgrain]

not as bad as an engineer I had over here the other day who'd filled up his brand new company car with petrol and wondered why it didn't work. until he discovered he should have filed it with diesel

My brother filled his Yamaha R1 with diesel recently

 

[Gumbo]

My brother filled his Yamaha R1 with diesel recently

I bet there was much pointing and laughing

And probably some crying from your brother.

 

[TdC]

hehe like oops

you're a technical bloke Throd: question: if you do that, ie try to get an engine to start with fuel that isn't meant for it, is it buggered forever or is it mearly draining the tank and replacing the fuel that will fix things again?


this is an R1 btw. I didn't know so I googled it:

 

[throdgrain]

I think there might just have been yes

 

[throdgrain]

hehe like oops

you're a technical bloke Throd: question: if you do that, ie try to get an engine to start with fuel that isn't meant for it, is it buggered forever or is it mearly draining the dank and replacing the fuel that will fix things again?

Nar just drain it. The R1 has carbs, so its not such a big deal. he actually drove off down the road, got about half a mile too He then looked round and thought "wow my bikes got a bit smokey" or something to that effect
If its fuel injection its worse as the injectors can get clogged with horrible thick gloopy diesel, and of course if you put petrol into a diesel engine and run it that can be pretty catastrophic!

his R1 looked pretty much like this -

 

[Lazarus]

i preferred teedles pic - the one with the stabilisers

 

[TdC]

his R1 looked pretty much like this -

ah cheers I like that pic btw: the exaust pipe's picked up a nice colour from the heat. very cool

 

[Bodhi]

Interestingly my father used to put half a tank of unleaded in his BMW diesels every 6 months, claiming it cleaned the engine out and he was advised by BMW to do so. Must have done the trick, his first two BMW diesels, an N-reg 525td and V reg 320d are both still zipping round with 130k+ on the clock. I saw the 525 recently actually, was driving round Stafford sounding pretty similar to when it did when it was new.

 

[TdC]

I don't really understand that. Not in a diesel I mean. I do however understand that people used to do a tank full of leaded in their normally unleaded cars every so often.

Surely fuels and engines are much less picky now though?

 

[Rubber Bullets]

I have read elsewhere that it is a good idea to add 10% unleaded to diesel over the winter months to help keep engines running well.

I also heard that early unsophisticated diesel engines were able to run on unleaded, but only on an emergency 'get you home' type occasion.

Modern diesels will die very quickly from neat unleaded, apparently it destroys the fuel pumps.

All of the above is unconfirmed and any damage that is done to any engine as a result of believing this stuff is entirely on the owners head.

RB

 

[DaGaffer]

I have read elsewhere that it is a good idea to add 10% unleaded to diesel over the winter months to help keep engines running well.

Old wives' tale tbh. Modern engine management systems would cope with it for brief periods but it would have absolutely no benefit and it would hurt your fuel consumption (the unleaded would be flushed without detonating).

 

[throdgrain]

Old wives' tale tbh. Modern engine management systems would cope with it for brief periods but it would have absolutely no benefit and it would hurt your fuel consumption (the unleaded would be flushed without detonating).

100% correct imo

 

[xane]

When I filled up last night at Tesco I noticed that Diesel was the same price as Petrol. I have owned a Diesel for only about 2 years, so how often does that happen ?

 

[Tom]

Old wives' tale tbh. Modern engine management systems would cope with it for brief periods but it would have absolutely no benefit and it would hurt your fuel consumption (the unleaded would be flushed without detonating).

Its not necessary to add unleaded in the UK. This 'old wives tale' is more to do with the anti-waxing additives now in diesel sold at the pump than engine management systems. Adding unleaded reduces the temperature the diesel waxes at. Without those additives, adding unleaded is a good idea

 

[Tom]

When I filled up last night at Tesco I noticed that Diesel was the same price as Petrol. I have owned a Diesel for only about 2 years, so how often does that happen ?

More duty on diesel, so not often.

 

[GDW]

No way can a diesel engine run on petrol, not even Beemers!

Put petrol in a diesel and try to start it you can kiss goodbye to the engine.

Quote :

" Petrol wrecks diesel engine lubrication processes and is particularly damaging to a diesel engine's costly, high-pressure fuel pump, which operates at up to 2,050bar (30,000psi). Petrol removes the pump case hardening and if a film of hardened metal disintegrates into swarf it will greatly harm or even wreck an engine's internal organs.

At best, if the engine is not started or perhaps run only very briefly, the fuel tank and its internal pump, fuel lines, main high-pressure pump, fuel injectors and filters will all require removal, clearing and re-installation (which might include some renewal) at a cost of up to £7,000. At worst, several parts will need replacing, even the engine itself, at a potential cost of £12,000, or more for a top executive car"

 

[Trem]

*puts diesel in Teedles*

 

[TdC]

*enjoy high-pressure fuel injection*

 

[Rubber Bullets]

OK so this is an oldish thread, but did anyone see 5th Gear last night? They did an experiment putting diesel in a petrol car and vice versa to see what would happen.

The petrol car ran pretty badly on diesel, but once refilled with unleaded got back to normal pretty quick.

The diesel ran very well on unleaded for at least 15 miles, but stopped when they were doing an emissions test and wouldn't restart. They topped it up with diesel and it did restart and after a bit of uncertainty picked up pretty well.

Apparently they drove it again the next day with no problems and did a 200 mile round trip the day after that.

The diesel in question was an L plate Astra, I assume non turbo, and as such was far less sensitive to misfueling than a modern turbo diesel. We also don't know for sure what would have happened after another few hundred miles.

This does however suggest that my suspicion that early diesels did allow normal petrol as a get you home emergency was possibly accurate.

On a slightly related note a friend of mine was in the market for a Golf GT TDi a couple of weeks ago. He took one out from a dealership in Exeter and it broke down.

Turns out that the garage had misfueled and put unleaded in!

A couple of days later the garage called to say that the car was OK now and that he could come and have another go. He asked what they had done to the engine to rectify the problem and was told nothing, that they had drained and refueled it and it was fine now. Unsurprisingly he declined and bought one elsewhere.

It does raise the thought that if a customer misfuels then garages will fall over themselves to do £1,000s of work to rectify the 'damage' but if it is themselves who are footing the bill then they are less keen.

RB

 

[Tom]

The engine will normally be fine, its the components that rely on the lubricating properties of diesel fuel that won't - mainly the fuel pumps.

If you want an 'emergency get home' fuel, buy some vegetable oil and pour that in. Even on modern high pressure injection diesel engines a bit of veggie oil won't do it any harm provided the engine is warmed first.

 

[Bodhi]

No way can a diesel engine run on petrol, not even Beemers!

Like I said, I've seen it happen - well I've seen one run on a mix of diesel and unleaded. 100k thousand miles that particular 320d is still running strong, despite the fact it has my sister driving it.

 

[Rubber Bullets]

The engine will normally be fine, its the components that rely on the lubricating properties of diesel fuel that won't - mainly the fuel pumps.

If you want an 'emergency get home' fuel, buy some vegetable oil and pour that in. Even on modern high pressure injection diesel engines a bit of veggie oil won't do it any harm provided the engine is warmed first.

You're absolutely right Tom, and I certainly wasn't advocating it's use. We run a modern turbo diesel and have never felt the need to put any petrol in for any reason.

As it said on 5th Gear modern pumps work at higher pressure and their components are made to finer tolerances. If they lose the lubricating properties of diesel then they can break down very quickly and the metal on metal action will create a fine metal swarf that will destroy the engine as well. This is worst case scenario.

RB