Jayp350z Posted October 12, 2011 Posted October 12, 2011 Ive had my 350z for a few months now and have always run it on normal unleaded but have read on quite a few posts on here that the super unleaded makes quite a difference. The previous owner who had it from new said he always put normal unleaded in for the 64000 miles he owned it. Should I start putting super unleaded in it or it is a bit too late for it to make any difference now? Quote
Ekona Posted October 12, 2011 Posted October 12, 2011 What does it say in the manual? There's your answer I would always put super in unless an emergency. Always. Quote
Dblock Posted October 12, 2011 Posted October 12, 2011 Super after a tank or too should improve your performance Quote
coldel Posted October 12, 2011 Posted October 12, 2011 I put in unleaded once, as Ekona said in an emergency when I was v low and the super pump was out - a good way to find an answer to your question is to fill up a few times on super and see what happens... Quote
Chris`I Posted October 12, 2011 Posted October 12, 2011 I would always put super in unless an emergency. Always. This. It even says so in the filler cap Quote
speedwell Posted October 12, 2011 Posted October 12, 2011 Also,performance gains aside,tests have shown that super gives slightly better mpg,so the higher cost is offset in any case. So, super every time. Quote
Chris`I Posted October 12, 2011 Posted October 12, 2011 I put in unleaded once, as Ekona said in an emergency when I was v low and the super pump was out - a good way to find an answer to your question is to fill up a few times on super and see what happens... The problem is its very hard to tell the difference going from 95RON to Super. What you can feel much more easily is going from Super to 95RON. I find that if you put crap fuel in you can tell within a few miles something isnt happy. I urge anyone on 95RON to run Super for a few tanks (say 3-4 for adjustment) then try 95RON again and you will feel the difference. Quote
coldel Posted October 12, 2011 Posted October 12, 2011 Then of course do you go for something like Shell SUL or Supermarket SUL...quite a difference in cost, can be up to 10p a litre difference Quote
Jayp350z Posted October 12, 2011 Author Posted October 12, 2011 Thanks for the replies I think I will try a few tanks and see if it makes a difference I used to put super in my last car so I dont mind paying the extra for it, I would just like it to feel like its making a difference in performance Apart from price is there any difference between supermarket fuel and shell etc. Performance wise? Quote
rabbitstew Posted October 12, 2011 Posted October 12, 2011 Thanks for the replies I think I will try a few tanks and see if it makes a difference I used to put super in my last car so I dont mind paying the extra for it, I would just like it to feel like its making a difference in performance Apart from price is there any difference between supermarket fuel and shell etc. Performance wise? I found an article on one website where this place actually tested all the main brands of super unleaded on a dyno in a scooby and found the best was Tescos momentium and Shell super unleaded. I always use the tescos one as its cheaper. About £1.40 atm I think. Quote
Dblock Posted October 12, 2011 Posted October 12, 2011 Some people say tesco 99 is 99 Ron with minimum additives. V power does seem to have more additives in it. Some people say that supermarkets clean there tanks out much less often but I couldn't tell you if this is true. Quote
Jayp350z Posted October 12, 2011 Author Posted October 12, 2011 In that case I'll probably go for the Tesco stuff too Thats where I do my shopping and every now and then they do a promotion where you spend so much in store and you can get super fuel for the price of normal Quote
Vik54 Posted October 12, 2011 Posted October 12, 2011 How many times has this question been asked and answered in the lst couple of months? Quote
WINKJ Posted October 12, 2011 Posted October 12, 2011 look at it like this .... its like buying a pedigree cat and feeding it tescos own cat food!! It needs Iams.... just like the 350 needs super!!! PS. a top tip to anyone - if you ever go to Tescos fuel/any other petrol station (only ever tried it at Tescos) and they have a "pump out of use thing on" go in side and ask how much they have left in the tank, if its over 1500 litres, they will normally let you take the cover off and use it anyway! James Quote
Chris`I Posted October 12, 2011 Posted October 12, 2011 See the 2 blown engine thread - the quotes from the owners manuals are pretty definitive Quote
Bry Posted October 12, 2011 Posted October 12, 2011 Surely just out of blind curiosity do people that fill their Z up with normal unleaded ever glance over at the Super unleaded pump and wonder what cars are meant to use it? Maybe even put 2 and 2 together and realise that maybe just maybe it's for sports cars,,, wait a minute isn't that what I've got Quote
cefiro_drifter Posted October 12, 2011 Posted October 12, 2011 I only ever ran my skid cars on shell or tesco super. Quote
Karlp Posted October 12, 2011 Posted October 12, 2011 This is scary! Especially with the recent engine blows! Only super for me from now on! Quote
BulletMagnet Posted October 12, 2011 Posted October 12, 2011 Some people say that supermarkets clean there tanks out much less often but I couldn't tell you if this is true. It's true. Filled my bike up at Shell and could see to the bottom of the tank. Filled up at supermarket and fuel was cloudy and could not see the bottom of the tank. Quote
Dblock Posted October 12, 2011 Posted October 12, 2011 Some people say that supermarkets clean there tanks out much less often but I couldn't tell you if this is true. It's true. Filled my bike up at Shell and could see to the bottom of the tank. Filled up at supermarket and fuel was cloudy and could not see the bottom of the tank. Good to know, I used to fill at shell but its a big difference in price now Quote
Dblock Posted October 12, 2011 Posted October 12, 2011 VPower is 1.40 round here v power here is about 144 and tesco momentum is 136. It never used to be a big difference. V power is about 14p more expensive than regular shell unleaded. Quote
coldel Posted October 13, 2011 Posted October 13, 2011 My closest garage is BP which I have used a fair bit but its super is 97 and its very expensive, not far from being on par with Shell - I am wondering if its worth hunting down a Shell or similar. I did google my closest Tesco as well yesterday...its about 2.5 miles away, is the supermarket fuel really that bad then? Quote
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