Cheapest Petrol & Diesel Discussion Area

grizzly1911

In our "local" town we have 2 Tesco petrol stations within 1 mile max. of each other.

One is a Tesco supermarket site and the other is an Esso site with a Tesco mid size supermarket.

There is a 2p/L differential with the Tesco site being cheaper.

I am sure the fuel comes from the same supplies but as JPP says it depends on who pays for it and accounts for it.

Can't you just find another Tesco to use it at.

I avoid Fuel/Food discounts as IMO either the fuel or goods are over priced.

Asda seem the only consistent "cheap" fuel.

User99

I have seen on this forum somewhere the advice to set off as soon as you start the engine. If you have turbo fitted, check this with the dealer as it can lead to a defunct turbo. My car (Renault Scenic) draws oil from the engine to lubricate this part and if you start off immediately it can build up carbon = expensive replacement. You're supposed to wait a minute. The same when you finish a long journey - the Haynes manual says leave the engine running for a few minutes.

Not exactly fuel saving advice but better to have car in good condition - it might save a few quid!!!

Dan2910

User99 is right.

If you have a Turbo (either petrol or Diesel) you need to warm the engine and run oil around the turbo before setting off (especially if its a high performance engine) and the same at the end of the journey. the turbo needs to cool down but have an oil feed to assist in this so you should run the engine for another min or so at the end.

This will use more fuel but on a modern engine its a very small amount. I have 08 Ford Mondeo 1.8 TDCI and at idle when the engines warm it says its using 1 Gram of fuel per hour. Better that than knackered turbo or worn bearings!

sabretoothtigger

The best advice is even simplier, drive like a grandma at the start and end of a journey. IF you live at the bottom of a steep hill you are screwed but most people shouldnt be going beyond 3000 revs


If you do this even with a turbo then you will be fine. The reason being that a turbo is not active at all times, if the engine is otherwise able to provide enough power it will not be employed or under stress. Like reversing or very consistent 20mph or so driving there is no turbo boost in action, on a very fancy BMW it should probably have an indicator that would confirm this info in real time

So cooling down the turbo at the end of a journey is right but you are a muffin if you were accelerating hard right upto your drive way.
It wont be hot enough to do any damage if you spent 5 mins driving like miss daisy so idling is unneeded. Plus your neighbours walking their dogs will love you more

I-LOV-MONEY

I always start my petrol-driven car slowly for it to 'warm up'. Is there any benefit in doing this?

I-LOV-MONEY

I-LOV-MONEY wrote: »

I always start my petrol-driven car slowly for it to 'warm up'. Is there any benefit in doing this?

Can nobody help with my query?

If I have a 10 mile journey and leave my house earlier and drive slowly (to 30mph limit !), is there going to be much of a fuel saving form going at say 40mph ?

JDPower

I-LOV-MONEY wrote: »

Can nobody help with my query?

If I have a 10 mile journey and leave my house earlier and drive slowly (to 30mph limit !), is there going to be much of a fuel saving form going at say 40mph ?

I can't really answer your exact query but I spent some time testing out the difference between limiting my speed to 50mph rather than 60mph (on a route that was about eighty percent 60mph speed limit) and it saved on average around 8-10mpg, and the 30 min route only took an additional 5 mins. (This was mostly at night with no traffic to hold up, with other traffic behind me I drove up to the speed limit)

I-LOV-MONEY

Thank you, but of course the whole traffic conditions are never the same even at night! I suppose as I am coming up to 63, I ought to stop pretending to be a 'boy racer' :D

JDPower

I-LOV-MONEY wrote: »

Thank you, but of course the whole traffic conditions are never the same even at night! I suppose as I am coming up to 63, I ought to stop pretending to be a 'boy racer' :D

Oh they were usually the same for that particular route, 9 times out of 10 I never saw another car the whole way, that's why I used it to test the difference I actually found it quite fun turning it into a game after a while to set the highest average mpg possible on that route - driving normally I got around 35-40mpg, my personal best was 56.9 and all the time knowing it was saving money

I-LOV-MONEY

How did you do it? Did you fill up immediately after the trip (from full) to see how much petrol you used?

The only problem is that you are wasting petrol experimenting !