What MPG are you getting from your vehicle?

Obviously not we knew the dangers involved using these chemicals. Tried Redex on various cars over the years and never noticed any difference.

Yours has the 722.6 transmission, which is the 5 speed box. The 722.9 is 7 speed, so it depends on which box was fitted and to which model. There's lots out there who would be of the opinion that the 722.6 box is the better one, but I guess thats relative to personal experience. My 2010 Eclass had the 722.6 5 speed, and I never had a problem with it, but the newer 2014 Eclass has the 722.9 trans with 7 gears. Problem is where fuel consumption is concerned, with the 722.9 trans, where I drive it rarely see's 6th gear,,its predominantly in 5th, which is 2 gears lower than its top, while the 722.6 would cruise happily in 4th on the same roads, just one gear below its top gear. So it was marginally better on fuel. But for good consumption, nothing beats the 2003 Audi A6 1.9 TDI Sports I had before the MB. On exactly the same roads, same driving, it was returning an ave of 5.5 Ltrs / 100 KLms. The MB fill to fill actual consumption over the last 5'000 Klms was 8.2 Lts / 100 Klms.

Lowest ive seen is 4.3 on a long trip.

There's a simple calculation for fuel consumption. And its 100% correct. Fill tank, note the Klms. Drive on until next refill. Check the Nr of KLms driven, then divide that into the Nr of Ltrs filled and multiply the answer by 100. Result will give you the correct Nr of Ltrs per 100 KLm's.

That will not matter how much fuel is in the tank to do this calculation...its the fuel used is what counts. In my 220, I can expect the low fuel warning icon after I pass the 600 Klm mark ( but its only happened to me once ) Anything between quarter and half full is refill time. On average, I refill after travelling 500 Klms. You do not have to empty the tank, but you have to fill it 100% on both ocassions for the formula to work. I filled mine last week, and have only driven so far, 50 or 60 Klms, and all secondary hilly roads..4th-5th gear mainly, but later this week I will be doing about 200 Klms mainly motorway driving, so after that, I'll fill the tank again, and do the calculation. I'm expecting better than its usual 7-9.5 Ltrs per 100 Klms. So we will see. And as you mention low fuel levels risking bringing "Risky" fuel up through the system,,,( which is true, BTW. Water can condense and sink to the bottom.....which is why the intank filter will only take fuel from about 1/2 " above the bottom of the tank) But even more important in my view is to pick a fuel station, and only buy from there. Stations with a high turnover are your best bet for quality fuel.

You can do it over several thankfulls, just keep a record of how much you have put in.

I know this site is dying on its feet but hopefully you'll see my question. Is it ok to use dipetane on a petrol engine? I thought it was for diesel/ kerosene only.

Thanks for replying, I've just recently bought an IV superb, would it be ok with the VW 1.4 engine, I don't know if it has an egr tbh.

wtf

So you buy a very efficient car, then drive the absolute bollocks out of it to get those figures?

Any modern petrol car will have an EGR valve.

for city driving, seems about right for a petrol car. Probably a lot of stop/start traffic which will never give good figures

What about all city? Closer to 11 I'd imagine. 😉

9 and crumbs. Cruise @ 50-52 km/h works wonders.

The real killer is the bit of motorway on my commute, if it’s clear. 2 tunnels, and so I just can’t help myself 😉 An easy 15 there, especially if I play with the paddles.