Diesel spills???
Author
Discussion

triggerh4ppy

Original Poster:

422 posts

155 months

Monday 4th August 2014
quotequote all
It seems any accidents at roundabouts and people mention diesel spills.

Ive never had any first hand experience with this and never understood it.

Where are all these trucks spilling diesel? What causes it? Is it something as silly as a cap left off a fuel tank?

camelot1971

2,851 posts

195 months

Monday 4th August 2014
quotequote all
Generally a HGV fuel tank that's been overfilled or the cap not secured properly. Go around a corner (i.e. a roundabout) and the fuel slops out onto the carriageway. It doesn't take much to turn it into an ice rink.

If you have ever ridden a motorbike and hit some diesel on the road you will know why spills are a bad thing furious

BritishRacinGrin

26,503 posts

189 months

Monday 4th August 2014
quotequote all
HGV drivers like to fill their tanks to bursting to maximise range, so for the first few miles of their journey they might lose a little. Petrol stations HGVs use are often near roundabouts on 'A'-roads.

I had the back end break loose on my Clio due to diesel.

JakeT

5,997 posts

149 months

Monday 4th August 2014
quotequote all
They do happen as mentioned above. My grandfather actually hit spilt diesel, slid into the kerb and rolled his car 3 times on the A610. They tried to claim from the company, but since they couldn't 'pinpoint' who was driving the tanker they got off with it.

Usually it's people who bin it because they're not competent and want to sound like a hero...

jamieduff1981

8,092 posts

169 months

Monday 4th August 2014
quotequote all
I've never experienced it myself. I've had little slippages, sure, but nothing that couldn't be explained by damp roads and a bit of over exuberance.

PanzerCommander

5,026 posts

247 months

Monday 4th August 2014
quotequote all
Does happen, I have only seen it twice, the first time I lost the rear due to diesel was on a damp roundabout (light rain so it must have literally just happened) went around the roundabout, applied the same power I normally would in the wet (not very much) and found myself at a funny angle, the st traction control system then sent me yawing backwards and forwards up the road as the throttle cut in and out irked something I'd have caught and corrected without its intervention.

A different roundabout but this time in a FWD rental car, it had been raining but the sun was now out as I approached the roundabout I could see the rainbow of colours left by what looked to be oil round most of one side of roundabout, no calamity this time as I could see it and respond accordingly.

But that’s the only two instances of diesel (or oil) on the road that I have been on the receiving end so to speak since passing my test 11 years ago, I have had other sideways incidents that were simply due to over exuberance on the throttle hehe

Though sometimes I think people just use it as an excuse for st driving rather than there being actuall diesel on the road.

adsvx220

705 posts

212 months

Monday 4th August 2014
quotequote all
I have come across it. A wet Thursday afternoon in March. I was in my work van (a rwd mazda pickup truck) going along some country lanes I come to a T junction. Pulled away and it was like hitting ice engaged 2nd gear and the rear wheels are spinning claiming a hill. 1 mike up the road I catch up with the suspect. It was an old tractor pulling a tanker style trailer and the diesel was pissing out the tap at the back.

triggerh4ppy

Original Poster:

422 posts

155 months

Monday 4th August 2014
quotequote all
Surely the fuel tank cap would form a tight seal around the filling neck?


BritishRacinGrin

26,503 posts

189 months

Tuesday 5th August 2014
quotequote all
triggerh4ppy said:
Surely the fuel tank cap would form a tight seal around the filling neck?

Air has to get into the tank somewhere to replace the diesel as it is pumped out, so the caps are designed to vent or alternatively there is a seperate vent pipe on the tank somewhere. Neither will be 100% diesel tight and will leak if the tank is overfilled.

MJK 24

5,677 posts

265 months

Tuesday 5th August 2014
quotequote all
triggerh4ppy said:
Surely the fuel tank cap would form a tight seal around the filling neck?

They do have a tight seal. You're more likely to see the diesel squirt out of the key hole.

To the poster above, the tank will have a vent pipe that comes out the top and sits down the rear of the tank.

Urban Sports

11,321 posts

232 months

Tuesday 5th August 2014
quotequote all
I've experienced these phantom spillages just once a couple of years back, I wasn't going to fast but the car slid from the outside lane of a roundabout to nearly hitting the kerb on the other, it was like ice but was in the summer. I can only assume that with the haulage depot next to the roundabout it would probably have been diesel.

Makes me laugh though when ever there is a lack of talent it must be a diesel spillage, some maybe but not all hehe

jimbobsimmonds

1,824 posts

194 months

Tuesday 5th August 2014
quotequote all
Had the front wheel of my little 125 slide out from underneath me about a year ago. A combination of quick reactions, the ability to be able to "kick" such a light bike back upright and copious amounts of luck stopped me from binning it.

Also drove over fluids on track in the car at Castle Combe. The sensation of the car suddenly just moving 5 feet to the left of where it should be coming onto the straight was a rather unnerving once.

In conclusion. Slippery stuff...

Adam_W

1,098 posts

229 months

Tuesday 5th August 2014
quotequote all
Used to find a roundabout in town was pretty slippery (in a car) quite often, probably no coincidence it was right next to the bus station/depot.

PHmember

2,487 posts

200 months

Tuesday 5th August 2014
quotequote all
Diesel is horrible, like ice.

I worked in a petrol station for years. The petrol station exit leads almost directly onto an-off camber roundabout (about 5 metres from exit to roundabout). I've NEVER seen or heard about any diesel spilt onto this roundabout. Loads on the forecourt, but never anything on the roundabout.

jimbobsimmonds

1,824 posts

194 months

Tuesday 5th August 2014
quotequote all
anonymous said:
[redacted]
Aye, the entire car didn't yaw it was just a horrible sensation of light steering wheel and movement to the left but you could feel the suspension unloading so the body is pinging "clockwise" as the left unloaded but the car is still moving left. I don't know how to describe it other than it's a tiny bit like a waking version or that weird, horrible sensation that you get when you fall during your sleep.

As soon as the car regained grip there was that horrible wiggle which at 80 mph with a wall next to you is unnerving. I wish I could say I held it like a pro with a dab of oppo but truth is I just kept my eyes forward and wheels straight and the thing sorted itself out. I don't have stability control, it's times like that I wish i did!

furtive

4,503 posts

308 months

Tuesday 5th August 2014
quotequote all
Isn't it just a myth and used an excuse when they have run out of talent?

PanzerCommander

5,026 posts

247 months

Tuesday 5th August 2014
quotequote all
jimbobsimmonds said:
Aye, the entire car didn't yaw it was just a horrible sensation of light steering wheel and movement to the left but you could feel the suspension unloading so the body is pinging "clockwise" as the left unloaded but the car is still moving left. I don't know how to describe it other than it's a tiny bit like a waking version or that weird, horrible sensation that you get when you fall during your sleep.

As soon as the car regained grip there was that horrible wiggle which at 80 mph with a wall next to you is unnerving. I wish I could say I held it like a pro with a dab of oppo but truth is I just kept my eyes forward and wheels straight and the thing sorted itself out. I don't have stability control, it's times like that I wish i did!
I know the feeling, I once hit some standing water a (NSL DC, going a bit too fast for the conditions I will add) in my previous car (Focus ST) and the car just seemed to skew slightly. The ESP light came on but nothing really happened because there was no grip at all to allow the car to sort its self out. As soon as I hit wet tarmac rather than a big puddle the car pulled straight and I continued on my way albeit with a slightly elevated heart rate and a slightly lower velocity.

Urban Sports

11,321 posts

232 months

Tuesday 5th August 2014
quotequote all
furtive said:
Isn't it just a myth and used an excuse when they have run out of talent?
Yes usually, although as I said I have experienced this phenomenon whilst only doing about 20mph, it was like ice!

Mr2Mike

20,143 posts

284 months

Tuesday 5th August 2014
quotequote all
furtive said:
Isn't it just a myth and used an excuse when they have run out of talent?
Sometimes. Diesel spills are pretty common however, especially near to filling stations, bus depots and farms.

TheEnd

15,370 posts

217 months

Tuesday 5th August 2014
quotequote all
I'm surprised there's a lot who hasn't seen the telltale blueish stains in damp weather from leaking oils.

I've seen them on corners from diesel sloshing about, and in lines where it looks like it is leaking from pipes on the engines.