Which fuel ?

Which fuel ?

Author
Discussion

markys

Original Poster:

612 posts

264 months

Tuesday 1st July 2003
quotequote all
For a 4.2, should it be Optimax, Sul or plain unleaded ?

GCerbera

5,161 posts

258 months

Tuesday 1st July 2003
quotequote all
markys said:
For a 4.2, should it be Optimax, Sul or plain unleaded ?
I'm using 97 to see how I get on, but Optimax would give the best results.

Best not to use 95.

olly

2,174 posts

291 months

Tuesday 1st July 2003
quotequote all
GCerbera said:

markys said:
For a 4.2, should it be Optimax, Sul or plain unleaded ?

I'm using 97 to see how I get on, but Optimax would give the best results.

Best not to use 95.


Absolutely !

Strictly speaking we (us "early" 4.2 drivers) should be using 98RON fuel (as the sticker says by the filler neck), but as no-where has sold it for years, Super is the norm. Some people swear by Optimax, but I can't really notice any difference in our car.

mike_e

588 posts

270 months

Tuesday 1st July 2003
quotequote all
olly said:


Strictly speaking we (us "early" 4.2 drivers) should be using 98RON fuel (as the sticker says by the filler neck), but as no-where has sold it for years, Super is the norm. Some people swear by Optimax, but I can't really notice any difference in our car.


Erm, Optimax is 98RON.

I've used it for a while, it's same price as SUL (or even cheaper sometimes) Engine seems to run a bit smoother and no pinking whatsoever.

jellison

12,803 posts

284 months

Tuesday 1st July 2003
quotequote all
Q8 do 98 octane - found out the other day - but then how many Q8 garages do you see!

olly

2,174 posts

291 months

Tuesday 1st July 2003
quotequote all
mike_e said:

olly said:


Strictly speaking we (us "early" 4.2 drivers) should be using 98RON fuel (as the sticker says by the filler neck), but as no-where has sold it for years, Super is the norm. Some people swear by Optimax, but I can't really notice any difference in our car.



Erm, Optimax is 98RON.

I've used it for a while, it's same price as SUL (or even cheaper sometimes) Engine seems to run a bit smoother and no pinking whatsoever.


I didn't think it had been proven ? Oh well, I've been wrong in the past !

Jo Williams

690 posts

288 months

Tuesday 1st July 2003
quotequote all
Q8 sell 98 super, well at least that's what it says on the pump, but I guess they are not the most numerous of petrol stations!

I tend to use Optimax, which I thought was supposed to be 99 octane or something??

Jo

jnr

483 posts

258 months

Tuesday 1st July 2003
quotequote all
Two bonuses of living over in Dusseldorf is having the AutoBahns to play with Porkers and Shell having V-Power which is 100 Ron

I've been led to believe that the higher the octane rating the cooler the engine runs Which I guess is good for AJP's!

I wonder when shell will bring V-Power across to the UK....


Jnr

vroom

665 posts

291 months

Tuesday 1st July 2003
quotequote all
Jo Williams said:
Q8 sell 98 super, well at least that's what it says on the pump, but I guess they are not the most numerous of petrol stations!


Isn't that a long way to go for fuel?
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I'd better log off...