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Model specific boards => Golf mk2 => Topic started by: mpgscott on 26 November 2003, 20:22

Title: Leaded or Unleaded?
Post by: mpgscott on 26 November 2003, 20:22

Which fuel should I use in a 91 8v Gti.

I have been using unleaded..

Thanks

Title: Re:Leaded or Unleaded?
Post by: golfvr6 on 26 November 2003, 20:28

Unleaded or better use optimax.

Title: Re:Leaded or Unleaded?
Post by: Blue MK2 on 26 November 2003, 20:54

I thought leaded was long gone?  ??? you on about 4star?

Title: Re:Leaded or Unleaded?
Post by: mpgscott on 26 November 2003, 21:04

Yeah,

I mean 4star or lead replacement, what are your thoughts?

Title: Re:Leaded or Unleaded?
Post by: Blue MK2 on 26 November 2003, 21:09

i thought 4star messes GTi engines up?
Unleaded is more expensive but it will also make your car run cleaner and better.

Title: Re:Leaded or Unleaded?
Post by: golfvr6 on 26 November 2003, 21:10

I was told K-jets don't like LRP, which is what i assume you are talking about.

Title: Re:Leaded or Unleaded?
Post by: mk1 on 26 November 2003, 21:51

91 GTI should have digifant with knock sense, so you can run it on just about anything (not diesel ;)).
As said earlier in the thread, optimax is the prefered fuel of most golf owners, give it a go.
Steve.

Title: Re:Leaded or Unleaded?
Post by: jedi16v on 26 November 2003, 22:31

i use premium in my 1989 16v it works a treat . volkswagon recommend using 98 ron fuel (which now you cant get ) premium is 97 ron . a bit more expensive but it runs better (no more pinking hehehehe) ;D

Title: Re:Leaded or Unleaded?
Post by: golfvr6 on 26 November 2003, 22:33

I think you mean super not premium  ;)

Title: Re:Leaded or Unleaded?
Post by: jedi16v on 26 November 2003, 22:35

your quite right sorry mate to many beers  :-[

Title: Re:Leaded or Unleaded?
Post by: ddubya on 29 November 2003, 22:35

I  keep trying optimax in my 90-8v gti but i find it hard to notice a difference in performance and it seems to make it worse on fuel ie 80 miles to a tenner on optimax,and about 100 miles to a tenner on normal unleaded,im a bit wiery!

Title: Re:Leaded or Unleaded?
Post by: m4nesh on 29 November 2003, 22:41

Quote from: jedi16v on 26 November 2003, 22:31

i use premium in my 1989 16v it works a treat . volkswagon recommend using 98 ron fuel (which now you cant get ) premium is 97 ron . a bit more expensive but it runs better (no more pinking hehehehe) ;D

I thought all other premium unleaded petrol is 95 ron, super unleaded is 97 ron and Optimax is 98 Ron.

Correct me if im wrong? But Im quiet sure Optimax is 98 Ron

Title: Re:Leaded or Unleaded?
Post by: golfvr6 on 30 November 2003, 00:04

Correct  ;)

Title: Re:Leaded or Unleaded?
Post by: jedi16v on 30 November 2003, 00:04

your probably right . like i said to vr6 too many beers had woubles with my turds . it is super unleaded that is 97 ron not sure what optimax is never used it

Title: Re:Leaded or Unleaded?
Post by: Gozza on 30 November 2003, 21:04

tis what m4nesh said.

I use Optimax in my 88 16v :) runs good and shifts when I want it to..........

Title: Re:Leaded or Unleaded?
Post by: Blue MK2 on 30 November 2003, 21:12

What exactly is a nock sensor. where/how does it work etc??

diesel was accidently put into my car :( but it did clean out the injectors etc etc :D

Title: Re:Leaded or Unleaded?
Post by: golfvr6 on 30 November 2003, 21:18

Quote from: Blue MK2 on 30 November 2003, 21:12

What exactly is a nock sensor. where/how does it work etc??

diesel was accidently put into my car :( but it did clean out the injectors etc etc :D

A knock sensor is bolted to the block and sensing the engine knocking(or pinking), this then sends a signal to the ecu to tell it to retard the ignition timing briefly. This enables the car to use 95RON fuel. They are not fitted to k-jet cars , only cars with electronic fuel injection.

Title: Re:Leaded or Unleaded?
Post by: Blue MK2 on 30 November 2003, 21:34

is that the sensor on the left of the oil filter?

Title: Re:Leaded or Unleaded?
Post by: golfvr6 on 30 November 2003, 21:36

Don't know without looking! is it bolted into the block itself?

Title: Re:Leaded or Unleaded?
Post by: Blue MK2 on 30 November 2003, 21:41

Im thinking its the round shaped sensor bolted to the block with a blue connector?

Title: Re:Leaded or Unleaded?
Post by: golfvr6 on 30 November 2003, 21:44

I think so. There is a knock sensor where you say according to the manual.

Title: Re:Leaded or Unleaded?
Post by: Blue MK2 on 30 November 2003, 21:47

Cheers just had to get that cleared up ;D

Title: Re:Leaded or Unleaded?
Post by: m4nesh on 01 December 2003, 20:43

Quote from: golfvr6 on 30 November 2003, 00:04

Correct  ;)

dont i get a gold medal ;D

Title: Re:Leaded or Unleaded?
Post by: daros on 02 December 2003, 21:30

Running my 91 8v on optimax atm n running smoothly.......getting about 31mpg

David :)