displaying posts 1 to 4 of 4

Author Subject: Octane 99 Petrol

Seasoned Pro

Location: Number Wang

Registered: 18 May 2006

Posts: 3,268

Status: Offline

Post #1
my garage has upgraded the super unleaded from 98 octane stuff to 99 octane with X2 detergent.

is this too high octane for a gti6?
is the increased detergent destrctive to an older engine?

is it better to run te cars on super unleaded?
any advantages or disadvantages for engine wear?
Posted 10th Jul 2021 at 18:07


Location: Urmond (The Netherlands)

Registered: 19 Sep 2013

Posts: 458

Status: Offline

Post #2
I get Aral Ultimate 102 when I am in Germany. So, 99 seems to be fine.


My car park:
'96 Sigma Blue XSi6
'98 Diablo Red GTi6
'99 Onyx Black S16

All RFS powered!

Plus various other Peugeots
Posted 10th Jul 2021 at 22:15
steve h gti-6

Seasoned Pro

Location: Carterton

Registered: 04 Dec 2006

Posts: 1,582

Status: Offline

Post #3
I always try to run mine on Shell V Power 99RON, seems happy as Larry on this.


"Gotta Love The 6"

According to my wife i think the 6 is the fastest car in the world, perhaps she is right LoL !
Posted 12th Jul 2021 at 11:14


Location: Cologne

Registered: 09 Nov 2015

Posts: 390

Status: Offline

Post #4
Running on Aral Ultimate 102 here in Germany most of the time. No problems. They say it burns cleaner, has more of the good additives. At the same time running on LPG since 2017 (even higher octane) for low-medium loads without problems.
Posted 12th Jul 2021 at 20:09

All times are GMT. The time is now 22:47

The Peugeot GTi-6 & Rallye Owners Club Ltd - Registered in England & Wales - Reg No: 07410694 - ©2023 all rights reserved.

Please Note : The views and opinions found herein are those of individuals, and not of The Peugeot 306 GTi-6 & Rallye Owners Club Ltd or any individuals involved.
No responsibility is taken or assumed for any comments or statements made on, or in relation to, this website. Please see our updated privacy policy and legal information