put 95 unleaded in my sti8 buy mistake
30 May 2003, 11:09 AM
#1
Scooby Regular
Thread Starter
Join Date: May 2003
Posts: 107
Likes: 0
Received 0 Likes
on
0 Posts
Pulled up to pumps and picked up wrong nozel at pump and put in 95 ron unleaded in my sti8.
I did not think it would make much diff to the cars performance. But belive me it was as flat as a turd. It had no go in it at all.Its not ppp yet been done on monday.
I no it says use 97ron on filler flap but putting in 95ron sometimes i hope will not hert. But i don't plan on doing it again unless have no choice.
Has any one eles done this and did thay notice the change in performance?
andy
I did not think it would make much diff to the cars performance. But belive me it was as flat as a turd. It had no go in it at all.Its not ppp yet been done on monday.
I no it says use 97ron on filler flap but putting in 95ron sometimes i hope will not hert. But i don't plan on doing it again unless have no choice.
Has any one eles done this and did thay notice the change in performance?
andy
30 May 2003, 11:19 AM
#2
Scooby Regular
iTrader: (7)
Join Date: Jan 2001
Location: Chester (Tumbleweed City!)
Posts: 3,695
Likes: 0
Received 1 Like
on
1 Post
I have run my MY01 Bugeye on optimax from new, except for an emergancy £5 worth of 95ron.
YES i did notice a difference! apart from the price
Dont think any damage will occur from this, i assume yours is a UK spec car?
Steve
Edited to say...
if your concerned stick a octane booster in your tank
[Edited by Steve001 - 5/30/2003 11:21:07 AM]
YES i did notice a difference! apart from the price
Dont think any damage will occur from this, i assume yours is a UK spec car?
Steve
Edited to say...
if your concerned stick a octane booster in your tank
[Edited by Steve001 - 5/30/2003 11:21:07 AM]
30 May 2003, 11:20 AM
#3
Scooby Regular
Join Date: Apr 2003
Posts: 472
Likes: 0
Received 0 Likes
on
0 Posts
I had to put it into my Audi S3 on two occasions where I was stuck and they didn't sell 97 RON fuel. 
Agreed the car was slugish when trying to drive quickly. 
I assume you car is a UK spec as you mention it has a 97RON sticker on the fuel filler door. I wouldn't expect it to feel really flat though unless you are driving it really hard. If however it's an Import which was mapped to run on 100+RON fuel then it will run rough and I would put some octane booster in quickly and some Optimax ASAP.
Agreed the car was slugish when trying to drive quickly. I assume you car is a UK spec as you mention it has a 97RON sticker on the fuel filler door. I wouldn't expect it to feel really flat though unless you are driving it really hard. If however it's an Import which was mapped to run on 100+RON fuel then it will run rough and I would put some octane booster in quickly and some Optimax ASAP.
Trending Topics
30 May 2003, 01:35 PM
#8
Scooby Regular
Join Date: Oct 2002
Location: Kent
Posts: 531
Likes: 0
Received 0 Likes
on
0 Posts
flatfour0
I was forced to do this on Saturday in Worcester. They didn't have Super anywhere so had to fill with 95. I was very interested to find out the difference. The results...as you say very flat, less kick in the back (if any), but the most shocking thing was fuel economy. On a 150 mile drive from London - Worcester it took 3/4 tank on Super. On the way back on 95 it drank pretty much the whole tank. I was very shocked!
I was forced to do this on Saturday in Worcester. They didn't have Super anywhere so had to fill with 95. I was very interested to find out the difference. The results...as you say very flat, less kick in the back (if any), but the most shocking thing was fuel economy. On a 150 mile drive from London - Worcester it took 3/4 tank on Super. On the way back on 95 it drank pretty much the whole tank. I was very shocked!
30 May 2003, 01:57 PM
#11
Scooby Regular
Join Date: Oct 2002
Posts: 1,043
Likes: 0
Received 0 Likes
on
0 Posts
did this once out of necessity. Car ran badly, kept boost cutting, i assume because of the knock sensor and the low octane rating. Though mines an import so is mapped for higher fuel as standard anyway
30 May 2003, 02:00 PM
#12
Scooby Regular
Join Date: Mar 1999
Location: The Great White North
Posts: 25,080
Likes: 0
Received 0 Likes
on
0 Posts
Personally I'd not worry about it. Unless you're about to give the car a serious thrashing it should be ok. AFAIK the ECU will detect the lower fuel and will retard things back to prevent detonation (knock) and this will preserve the engine a bit for you.
30 May 2003, 06:32 PM
#14
Scooby Senior
you'll be fine.. after a while the CU wil tell its only 95 ron.. like it wil tell its 97/8ron when you put SUL back in it.
Don't worry.. iunless you want the fastest thing on the road.. put in 95ron.
I put 95 in my Turbo.. car runs fine... put 97 in it runs better.. but for the 'town' driving i'm doing i don't need the car running at top speed performance all the time.
if i werre doing a track day or RR day..i would flush Optimax through the car a good month before the Track / RR day.. that way the car will adjust is self to Optimax running.
Phil
Don't worry.. iunless you want the fastest thing on the road.. put in 95ron.
I put 95 in my Turbo.. car runs fine... put 97 in it runs better.. but for the 'town' driving i'm doing i don't need the car running at top speed performance all the time.
if i werre doing a track day or RR day..i would flush Optimax through the car a good month before the Track / RR day.. that way the car will adjust is self to Optimax running.
Phil
30 May 2003, 07:00 PM
#15
Scooby Regular
Join Date: Sep 2002
Posts: 578
Likes: 0
Received 0 Likes
on
0 Posts
In the P1 handbook it says... "Please use 97/98RON fuel where available, however 95 RON is acceptable but reduced power output can be expected".
I understand that the ECU remaps itself accordingly altho if the reduction in power is prolonged you could get it remapped at a dealer.
[Edited by will19702001 - 5/30/2003 7:01:44 PM]
I understand that the ECU remaps itself accordingly altho if the reduction in power is prolonged you could get it remapped at a dealer.
[Edited by will19702001 - 5/30/2003 7:01:44 PM]
30 May 2003, 08:11 PM
#17
Scooby Regular
Join Date: Nov 1999
Location: In wrxshire
Posts: 6,725
Likes: 0
Received 0 Likes
on
0 Posts
Search is an excellent tool only the old timers know how to use it though
http://www.scoobynet.co.uk/bbs/threa...hreadID=177837
http://www.scoobynet.co.uk/bbs/threa...hreadid=166526
http://www.scoobynet.co.uk/bbs/threa...hreadID=177837
http://www.scoobynet.co.uk/bbs/threa...hreadid=166526
30 May 2003, 08:51 PM
#18
Scooby Regular
Thread Starter
Join Date: May 2003
Posts: 107
Likes: 0
Received 0 Likes
on
0 Posts
Maybe i can not read and right but i no when my car is flat.
I nearly ran it out of fuel and now put SUL in it and it seems to be going a hell of a lot better.
Used to put both in my my97(uk) and it made no diff at all.
Hope my spelling is better this time.
I nearly ran it out of fuel and now put SUL in it and it seems to be going a hell of a lot better.
Used to put both in my my97(uk) and it made no diff at all.
Hope my spelling is better this time.
31 May 2003, 11:31 AM
#28
Scooby Regular
Join Date: May 2003
Location: ireland
Posts: 101
Likes: 0
Received 0 Likes
on
0 Posts
Hi,
Anyone recommend an octane booster that won't damage the cat?
What's the recommended dosage?, Is it safer to have slighty too much O.B.mixed than not enough, or can too much also cause problems?
(road use only; mixed driving styles)
cheers,
DC
Anyone recommend an octane booster that won't damage the cat?
What's the recommended dosage?, Is it safer to have slighty too much O.B.mixed than not enough, or can too much also cause problems?
(road use only; mixed driving styles)
cheers,
DC