Forums Forums Enthusiast Forums A - Z Autowirral Improving MPG

I havnt bothered to read this topic yet but if u think u have it bad try being me. £20 gets me about 90miles :S Thats average driving (some playng some sensible)

EcoTek valve? Been there done that, waste of money and they make a horrid noise @ idle (Some of you may remember when I had mine fitted)

/\ Now that's bad mpg!! /\

How do ya drive dazza?

Thats average driving (some playng some sensible)

Ahh sorry didnt read the post properly, my fault.

Mines with average drivin, its not too bad in comparison really. i feel lucky lol.

Really? oh, I'll stop moaning then. I've just bought a new Air Flow Meter as well! I thought I was getting about 20 mpg to be honest.
100 miles is a fair rag to Chester and back twice a day at about 70mph to pick my girlfriend up from work.
That's not bad then.

You would get better mpg if you use normal unleaded fuel and not optimax. I get about 100 to £10 on normal fuel, If I use optimax, my mpg goes down to about 70. There is not a big difference in preformance.

Some people say different things about Optimax, I don't use it anymore, as I seem to get through more than nomal unleaded. Don't know why, maybe I'm just paranoid?..

Optimax is not super-unleaded, it's the same RON as regular stuff, but has the detergants in (allegedly), though I've heard these have evaporated, or dissolved or just sink to the bottom of the tank in the petrol station!!

If you have an Octane plug in your engine bay, turn this round. Vauxhalls have them, it's got 95 on one side, and 98 on the other for appropriate RONs. If you car has a knock sensor then it won't. Mine has A and B on, nobody knows what this does exactly, but I've noticed difference in economy and left it on the better setting.

Ive got an ecotek valve and i do think it makes my petrol consumption a bit better. Maybe its illusion but before the ecotek i used to get bout 85-90 miles from a 10er, now i get 100.

If you set them up properly they dont make any noise when idling (or shudnt do) but if ther too open they do rasp a lot! mine jus makes a little "tss" sometimes when u change gear, but as i said, it did seem to make me petrol consumption better.

I definately see Stuy's point of view, i mean surely they wud fit them standard if they worked, but ecotek reckon its because they arent willing to pay the price for patents etc (obviously some sort of lie)

I gave it a try because there only £25 and if they arent making it any better, its only a small hose that needs replacin if you wanna take it off.

My mates for 1.8Si with an ecotek tho and he doesnt seem to think its made any difference.

Ok i havent helped at all there, but there my 2p! hehehe!