What octane do you use?

ou.grizzly · Post by **ou.grizzly** » Wed Sep 02, 2009 12:51 pm

87 octane...

brian1cj · Post by **brian1cj** » Thu Sep 03, 2009 11:01 am

I have a 06 base and upon switching to full synthetic and installing a K&N air filter, I notice it runs a lot smoother. I've been using strictly 87 but I'd bet 89 would make a positive difference.

star_deceiver · Post by **star_deceiver** » Thu Sep 03, 2009 1:02 pm

87, higher octane will get you nothing, unless you own a 2zz.

injun_josh · Post by **injun_josh** » Fri Nov 20, 2009 6:32 am

nothing but 93... 03 gt

mac99d · Post by **mac99d** » Fri Nov 20, 2009 10:49 am

91 with boster but geting ready to start runing E85 just got my 900cc injectors yesterday

Whelan · Post by **Whelan** » Thu Dec 03, 2009 2:36 am

I no of know E85 stations near me. But I do know that with 108,000 miles now, it's been pure 87 and good 'ol dino juice oil changes.

midnighthunder89 · Post by **midnighthunder89** » Thu Dec 03, 2009 7:45 am

why do you want to run e85?

vibenvy · Post by **vibenvy** » Thu Dec 03, 2009 10:31 am

Both mine and my mom's '09 GTs get nothing but 89. It's the lowest octane at the Citgo station we go to, but it's mid grade everywhere else so it's a good deal.

ou.grizzly · Post by **ou.grizzly** » Thu Dec 03, 2009 11:25 am

87 octane unless the petrol station has 89 octane for the same price. This goes for the 1.8L in the 04 and 08; also for both 09s that have the 2.4L (same engine as the Vibe GTs)

star_deceiver · Post by **star_deceiver** » Thu Dec 03, 2009 2:16 pm

Quote, originally posted by midnighthunder89 Â»why do you want to run e85?E85 has an octane rating of about 110 I believe, about the same as propane. So you can run with a 15:1 compression ratio without the costs of running race gas and while getting normal mileage.

midnighthunder89 · Post by **midnighthunder89** » Mon Dec 07, 2009 9:41 am

I disagree with the mileage. When I have used E85 the mileage decreased greatly. I don't think it is worth it. It was just a Temp solution for people that were complaining that gas prices were too high. There is no way that it should be continued to be produced.... I can think of much more energy efficient solutions besides e85

mac99d · Post by **mac99d** » Tue Dec 08, 2009 9:05 am

yes the oct is higher. yes you use 30% more, but it is cheaper per gallon than 91 so it comes out about the same cost. Due to running boost the 91 is not good for my car so i have to add booster.

star_deceiver · Post by **star_deceiver** » Tue Dec 08, 2009 10:11 am

Quote, originally posted by midnighthunder89 Â»I disagree with the mileage. When I have used E85 the mileage decreased greatly. But is your car boosted, have you shaved the cylinder head? Regular engines waste the octane from E85, just like running supreme.http://www.raceone85.com/ (there are hunderds of sites like this)

Digger · Post by **Digger** » Mon Dec 14, 2009 12:19 pm

87 for me. tryed higher in the past and it made no dif.

AZViking · Post by **AZViking** » Mon Dec 14, 2009 10:57 pm

89 because it's cheaper around here than 87.

What octane do you use?

Re: (brian1cj)

Re: (injun_josh)

Re: (mac99d)

Re: (mac99d)

Re: (midnighthunder89)

Re: (midnighthunder89)

Re: (midnighthunder89)

Re: (midnighthunder89)

Re: (ou.grizzly)