My Octavia RS with REVO

***DGW*** · 16-09-2004, 16:23

The anti-knock sensors on the engine should prevent detonation. My car was remapped by Jabba for 98RON Optimax but I usually fill up with 97RON BP Ultimate or even 95 RON. I seem to recall that Optimax is well-known for being variable in quality so there is no guarantee that what you fill up with is actually 98RON.

jason · 16-09-2004, 17:19

Quote:

Originally Posted by DGW

The anti-knock sensors on the engine should prevent detonation. My car was remapped by Jabba for 98RON Optimax but I usually fill up with 97RON BP Ultimate or even 95 RON. I seem to recall that Optimax is well-known for being variable in quality so there is no guarantee that what you fill up with is actually 98RON.

the optimax in ludlow is aweful,we have 1 petrol station and the 95 ron stuff is better than the optimax,i think they need to either clean out there tank or put the proper stuff in

RevoKev · 17-09-2004, 10:51

Yeah, I did a bit of testing in my own car over a few different tankfulls using optimax, ultimate, and cool blue. Suffice to say cool blue was loads, loads better than any regular fuel but at a cost. I also tried some full on RFT but that was just stupid money. I found that optimax was tending to pull back a couple of degrees more on average than ultimate, however I fill up at larger, regularly replenished Shell stations. If you've got a small unused optimax supply (it can 'go off') then you'd probably find that ultimate is more consistant. Tbh without datalogging facilities, on the road I find there's not a massive amount of difference between ultimate and optimax. Having said that I always use optimax (I've a shell station close to home) unless I'm stuck.

16-09-2004, 16:23	#51
*DGW* BRISKODA Staff Join Date: Oct 2002 Location: Cambridgeshire Posts: 17,300 Members Car: Octavia 1.8T 4X4 Estate & Fabia vRS Thanks: 51 Thanked 208 Times in 157 Posts	The anti-knock sensors on the engine should prevent detonation. My car was remapped by Jabba for 98RON Optimax but I usually fill up with 97RON BP Ultimate or even 95 RON. I seem to recall that Optimax is well-known for being variable in quality so there is no guarantee that what you fill up with is actually 98RON. __________________ Denis 2002 Octavia 1.8T 4X4 turbo Estate - rebreathed on by Jabba ... 31.93mpg 2007 Fabia vRS - CC, ESP and full leather trim by Seat Surgeons ...48.57 mpg... Last edited by DGW; 16-09-2004 at 16:27.

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17-09-2004, 10:51	#53
RevoKev Site Sponsor Join Date: Feb 2003 Posts: 214 Members Car: Thanks: 0 Thanked 15 Times in 13 Posts	Yeah, I did a bit of testing in my own car over a few different tankfulls using optimax, ultimate, and cool blue. Suffice to say cool blue was loads, loads better than any regular fuel but at a cost. I also tried some full on RFT but that was just stupid money. I found that optimax was tending to pull back a couple of degrees more on average than ultimate, however I fill up at larger, regularly replenished Shell stations. If you've got a small unused optimax supply (it can 'go off') then you'd probably find that ultimate is more consistant. Tbh without datalogging facilities, on the road I find there's not a massive amount of difference between ultimate and optimax. Having said that I always use optimax (I've a shell station close to home) unless I'm stuck.

My Octavia RS with REVO

My Octavia RS with REVO

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