Well I wont be using v-power again

[dirtydirtyharry]

I have had a couple of more modern performance cars in the past and found that using v-power instead of typical unleaded gave a noticable 'kick' and seemed to boost economy.

I figured that I would try it in the 944 to see if it had any effect. It maybe has felt a bit more responsive (although this could be due to more of a chill in the air).

Unfortunately while I usually get 450 miles from a tank it has dropped to just over 400. (This is doing the same mix of motorway and town driving as I normally do).

I will have had my heater on a few times to be fair but regardless of this , the economy difference coupled with the higher price of v-power means that I will be switching back to the normal stuff.

I have read before that older cars dont really benefit by using optimax/superunleaded and the like but figured I would try it to see. At least now I know. []

 

[MRGT]

I had pretty much the same thing in mine, felt a bit more responsive but mpg dropped

 

[ChasR]

My old GTi-6 used to do this.

Over the first tank it would drink a bit more. Over the next two tanks of V-Power the MPG would return once again, maybe even improve slightly. One thing to bear in mind is that the handbook said it should ideally be run on 97 RON, where I ran it on 95 (until a mate told me). I then found out half of the people knew about the 97 RON and that most ran it on 95.

 

[944 man]

Super should always give you more MPG. Like Optimax before it though, V-Power goes off quite quickly (even Shell admit that its well over 100RON when it leaves the refinery!), so you need to pick a station that you know turns over their super unleaded quickly...

 

[robwright]

I use Tesco 99 RON which seems to suit the car quite well. I don't do enough consistent type of mileage do have done the math on MPG as yet. I like it so will carry on using it I am afraid.

 

[mik_ok]

As I understand it - there is no point using SUL with the cars on the OEM map.

Once ours was remapped for the higher RON fuel, it definately felt sprightlier on the expensive stuff.

 

[sawood12]

You either get improved MPG or performance but /not both. I find that you need to use it for a few tankfuls because there is a mental game going on. For the first few tankfuls you are sort of subconsciously testing it to see if you can notice any appreciable improvement in performance. No matter how hard you try to drive normally you wont be - or else how is it you can possibly say you either did or didn't notice a difference in performance? This ultimately means you use more fuel than you would normally. After a few tankfulls you sort of forget about it and the MPG returns. I noticed no appreciable difference in either MPG or performance using V-Power - I used it for the extra knock protection it provides.

 

[Southloop]

You need to advance the timing to get any appreciable gains on cars designed for 95RON. More noticeable improvements on turbo cars as mentioned, due to the reduced susceptibility to knock.

 

[Mike_Pollock]

Early cars SHOULD run on 98 according to the filler cap sticker!
Mike

 

[robwright]

Mike,

Yeah someone else has said that before but the sticker on my 88 turbo says 97 RON. Wonder if there is a reason why??? Introduction of unleaded maybe?? Not old enough to remember what year it was introduced sorry []

 

[satancom]

Get another 20 miles to a tank on average when I use SUL.. so works out more cost effective! And typically its the last stuff to run out in my local tesco

Its been programmed into me to use SUL since I had an import and even my old and rover runs nicely on it giving a noticable power hike!

 

[Mike_Pollock]

V max certainly makes mine run more smoothly and changes the exhaust note!
Accelerating with relatively low revs the burble is considerably reduced - guessing the combustion is more complete so is smoother.
I've tried various fuels but not Tesco yet, went to get some Monday on the way to our regional meet, but they had run out! (Diesel too)
Mike