Does the manual say 'recommend' or 'require' premium?
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06-02-2009, 10:54 AM | #16 (permalink) |
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Does the manual say 'recommend' or 'require' premium?
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06-02-2009, 10:59 AM | #17 (permalink) |
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Here's what it says:
Recommended specifications: Unleaded gasoline with an octane rating of at least 91 AKI (RON 96)*1 I looked up 91 AKI and that falls in the category of Premium...at least according to this photo on Wikipedia: http://en.wikipedia.org/wiki/File:Ga...ne_Ratings.jpg
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Last edited by 2theextreme; 06-02-2009 at 11:03 AM. |
06-02-2009, 11:00 AM | #18 (permalink) |
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If it says 'Recommended' then you can fill up with regular and it'll be just fine, but don't make it a habit.
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06-02-2009, 11:37 AM | #19 (permalink) | |
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Quote:
YouTube - XXX Race Gas gains 14whp on stock 370z Edit: This was original posted here -> XXX Racing Fuel gains 14whp on stock 370Z
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06-02-2009, 11:53 AM | #20 (permalink) | |
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On my old Audi, the only difference between a 93 octane flash and a 100 octane flash was timing changes, good for 20-30 hp with that alone.. |
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06-02-2009, 12:49 PM | #21 (permalink) |
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My dealer, I would imagine, used regular for its first tank as well. Think about a lot of dealers... It's all about the almighty dollar. Anyway, I noticed that my first tank of gas, running well within the break-in procedure, I only returned about 19.5-20.5 MPGs. I put in my Shell V-Power (and then made the "V" sign with my fingers to all the people who passed me. he he. JK. Their ad) my MPG's jumped to between 23.5-26.5. Initial few miles? Maybe, but I think it could've been the gas.
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06-02-2009, 12:56 PM | #22 (permalink) |
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I imagine it'll be the same as the 350z - the ECU will adjust itself to to the poorer fuel, meaning you have less power, but your engine won't be damaged.
That said, why buy a greyhound and feed it on slops, if you know what I mean?
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06-02-2009, 12:58 PM | #23 (permalink) |
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06-02-2009, 01:11 PM | #24 (permalink) |
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Gas cap
Doesnt the inside of the trap door for the gas cap say "Premium Fuel Only"? I know mine does......I read it twice a week.
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06-02-2009, 02:12 PM | #26 (permalink) | |
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06-02-2009, 03:26 PM | #27 (permalink) | |
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To the OP, you'll be fine. Just wait till the tank is half or 1/4, then fill it up with 93.
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06-02-2009, 07:50 PM | #28 (permalink) |
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You guys seem to think im saying that 87 octane will do just as well as 91. I did not say that, However, the post above my last post stated that he'd (she'd?) bump their octane up as much as possible to get more and more HP.
most of you must have skipped my original post, I did not state 89 is just as good as 91. I know the difference, I may only have 14 posts here, but I'm not an idiot. And 89 is perfectly fine to use, as long as you dont floor it. The compression on the 370z's engine is 11:1, having 110 octane is not going to give you more power over 95 octane, the engine is still only compressing the gas to a 11:1 ratio. The only thing higher octane will do is allow you to compress it to a higher ratio and avoid knocking. as I stated in my last post, octane does NOT = hp gains. other factors = hp gains, not octane, It just allows those other factors to take place safely. -edit, forgot to mention about that Z with the HP claims for having higher octane. The race gas from XXX Racing Fuel is highly oxygenated, and that is most likely the cause for the gains. We all know that if you could compress more air into the cylinders, then you get a bigger bang - and thats how the race fuel from XXX Racing Fuel works. Regular gas typically has a oxygen weight of 2% while the XXX Racing Fuel 138 octane claims to contain nearly 20%! Last edited by Cjanik; 06-02-2009 at 08:06 PM. |
06-02-2009, 07:56 PM | #29 (permalink) |
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Theres a gas station about 2 miles from were i live that offers 103 octane i believe but at 8 bucks a gallon it can stay there. lol
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06-02-2009, 08:52 PM | #30 (permalink) |
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That's a good point about the oxygenation, Cjanik.
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