Alex Postan
New member
Read the manual! Super unleaded.
Performance difference doubt it could be measured on day to day road driving ..... mpg may possibly be better with super duper ... Biggest difference by far could be your bank balanceORIGINAL: ninja currenlty i'm putting super unleaded in, was just wondering if anyone was using the normal stuff and if so what's the difference in performance etc? ninja
jesus man that's a horror story!! i'm currently getting 23mpg with the super unleaded and if i'm honest i'm driving like a muppet as this is my new toy and i'm er trying to find it's limits! lol ninjaORIGINAL: T66JLC With super unleaded I usually get 24mpg on my work/town journeys, and got forced into putting ordinary unleaded in last time I filled up - and now only getting 17.2mpg on the same routes!
I may give the S/UL a try as haven't done so with a Porsche but for motorway constant speed 70-80mph driving I would be surprised to see 10% improvement. Maybe if youre using a lot the rev range then it would prove a couple of %bit more efficient. Mines running in still with 500 mls up so none of that yet.ORIGINAL: Black80XSA I've tried 95/98 on at least 6 cars now, and i always get 10% better mpg on 98 - maybe it suits my driving style more, i dunno, but i can recoup the extra 5-6% cost. When i've had to put 95 in my 986 2.7 or 987 3.2 i can;t say i really noticed any difference, maybe a little more hesitency on accelerating but that could be me thinking it rather than it beiung reality. The one thing with all super unleaded fuels is to buy from a busy forecourt - they quickly lose octane rating whilst in storage, so avoid low volume selling stations.
Thats been my experience as most of my use is long journeys at 70 ish at weekends, my Gen 2 Boxster S got 33 mpg using Shell or Sains 95.ORIGINAL: Black80XSA On the one occassion i used Tesco 99 (on a long motorway run 2-3 years ago) i got no better than when using 95 !
Chris I'm getting 32.5 mixed driving, I got an amazing 34 MPG on a 220 mile round trip to Suffolk at the weekend, thet was doing a fair bit of 75 MPH + on the M roadsORIGINAL: chrisH Spoonie, What are you getting from yours up til now on the 99 then? Mine is struggling to average over 30 on main road conditions up to 75. My previous Boxster did 33 in similar conditions except using it more. Chris
Posts made and opinions expressed are those of the individual forum members
Use of the Forum is subject to the Terms and Conditions
Disclaimer
The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.
Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.
When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.
Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.
Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.