Diesel Quality - Fact or Fiction

Trhiggy83

I was chatting with my uncle the other day and he mentioned that the quality of diesel in less known petrol stations is often poor quality and that is why it is cheaper. Is this true, im not too sure whether to believe him as i asked him why and he didnt really have an answer.

What effects can poor diesel have on a car, does it clog up filters or is it the engine that will suffer.

Most people will go to the cheapest petrol station trying to save a few euro, is it scaremongering from established petrol stations that spreads these rumours.

Any one any good advice?

Cash is king

http://www.boards.ie/vbulletin/showthread.php?t=2056872021

Start reading.

shawnee

There is a massive amount of laundered diesel sold in the forecourts in Ireland. I had one diesel engine ruined from this. Don't buy the cheapest , buy from a reputable source....;)

Kenny Logins

http://www.boards.ie/vbulletin/showthread.php?p=83031733

The Pontiac

There's a place in Fermoy selling no-brand diesel for cash only. It's seriously cheap. At least 10c cheaper than the cheapest branded stuff (eg. Texaco) around. It's always jointed. Can barely get in there.

I only went there once. A read of this is the reason I won't be returning.

miller50841

Did you see all the stations that popped up overnight selling cheaper diesel by 10cent or so?
These were selling laundered diesel which will kill your engine.

There is differences from different brands/suppliers.
You are right with filters and engine damage in extreme circumstances.

Also not always safe buying from a branded retailer as some were caught selling laundered fuel as 1 was in Enniskerry and still closed.

randy hickey

Trhiggy83 wrote: »

I was chatting with my uncle the other day and he mentioned that the quality of diesel in less known petrol stations is often poor quality and that is why it is cheaper. Is this true, im not too sure whether to believe him as i asked him why and he didnt really have an answer.

What effects can poor diesel have on a car, does it clog up filters or is it the engine that will suffer.

Most people will go to the cheapest petrol station trying to save a few euro, is it scaremongering from established petrol stations that spreads these rumours.

Any one any good advice?

One would be naive to think that washed diesel can only be sourced from the ubiquitous non-branded filling stations.Branded stations have been selling it too.
Whilst there is no 100% guarantee that the diesel you're using isn't washed, short of taking a sample and sending it off to be tested at some expense,one way to reduce the risk would be to stick with the one filling station where you have regularly witnessed the legitimate branded tanker delivering to them.

As regards the damage caused by washed diesel;
1. Washing always removes the lubricating properties of diesel not matter how the boys try to put it back.

2.If you've ever seen a washing plant,you'll see that a lot of the tanks used in the various stages are old tanks that wouldn't exactly be clean or rust free.Therefore it follows that washed diesel will have a lot more crud and rust floating around in it just waiting to do battle with your filter etc.

3.The washing process can leave traces of acid in the fuel.