cooking oil at morrisons £5/5L

[DaveAspley]

As per title really, down the foreign food aisle they have cooking oil for a fiver for 5 litres. £2 odd saving over normal dizzle yo! Times like this I regret binning my berlingo but running it for 18 months on used engine and dsg gear oil ruined the fuel system

[wackywacerwill]

KTC yo, that's what's in my tank. You can get cheaper at makro/costco and the like but need a card or a friend with one.

 

Morrisons have sunflower at the same price too, I'm not sure if that runs any better? Rape seed oil is the one though seems to hold a stronger price.

[scooters]

Its going in the old landy tomorrow and the lucas pump can lump it!

[wackywacerwill]

Its going in the old landy tomorrow and the lucas pump can lump it!

But the internet says you will die!

 

I've got away with a little of this in the past though could all be down to good luck/bravery/foolishness/selling the car soon after. 

[Stixy]

Im glad the price of cooking oil  has come down  around here cooking oil is more expensive than diesel 

 

Cooking oil might work in a diesel  but  diesel is crap for cooking chips in 

[Station]

Tesco currently has 2 x 5 litres of vegetable and sunflower oil for £9.

[NorfolkNWeigh]

This should probably be in the stupid question thread. But,what would happen if I chucked 5l of cooking oil in my allmodernzishit 3.0V6 Merc or the missus' 2.2 Ford/Pug thing? I'm not intending to,just wondered if they would instantly just die or would it be a long lingering death. Years ago I put £30 of petrol in a 3.0d BMW and everyone told me it would kill it when I just brimmed it with derv, that went onto to another 150,000 miles.

[Lankytim]

I think it would be fine aslong you didn't put too much in or did it regularly.

[Lacquer Peel]

I'd like to buy a cheap common rail diesel, a C5 HDI or something, to experiment on at some point.

I think as long as you don't start it on thick fuel it'd be fine, once the pumps, injectors, etc. are hot the oil is very thin anyway.

Or thin the oil down a lot with petrol to make it closer in viscosity to diesel - I think 20% would do it.

 

Wouldn't try it on an expensive car you have a lot of money invested in.

[Lankytim]

I've been told that veg causes ring gumming in common rail engines which causes loss of compression and engine death.

 

Shame, as ring gumming sounds like such a nice thing to happen.

[Lacquer Peel]

That's half true - ring gumming can affect any direct injection diesel running on veg oil, less so VAG SD/TDis because they have a bowl in the piston that's like an IDI diesel combustion chamber, so there's less chance of fuel escaping down the cylinder walls. It can be mitigated by avoiding short runs, idling and cold starts - keep an eye on the engine oil level rising or the oil becoming gummy.

 

The problem with common rails is their finely tuned pumps and injectors are designed to run only on diesel, so they can't cope with thick, cold veg like old distributor pumps.