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Old 12-13-2007, 12:11 PM   #1
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Premium fuel-who uses it??

So I have a 2000 Blazer 4x4. Its a 4.3L vortec. I know its not necessary to use 93 octane gas but is it hurting the motor by doing so? I notice it does run smoother and I dont have to fill up as frequent as reg gas.

What octane fuel are you guys running??
Old 12-13-2007, 12:30 PM   #2
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Re: Premium fuel-who uses it??

Unleaded
Old 12-13-2007, 12:32 PM   #3
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Re: Premium fuel-who uses it??

http://www.edmunds.com/advice/fuelec...3/article.html
Old 12-13-2007, 03:38 PM   #4
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Re: Premium fuel-who uses it??

Quote: Originally Posted by Mr Blue
good article-

i guess its a waste to put in super.
Old 12-13-2007, 05:30 PM   #5
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Re: Premium fuel-who uses it??

i put it in 2x when it was new...

difference in mileage was 600km on a tank - regular
650km on a tank - super

no diff in power...
Old 12-13-2007, 05:58 PM   #6
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Re: Premium fuel-who uses it??

I use premium when I set the computer for it with my HPPIII, but mostly just regular unleaded 87 octane.
Old 12-13-2007, 07:27 PM   #7
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Re: Premium fuel-who uses it??

i did when i first got the truck because i wasnt paying attention to which nozzle i grabbed.
Old 12-13-2007, 07:37 PM   #8
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Re: Premium fuel-who uses it??

Quote: Originally Posted by cpolaris502
i did when i first got the truck because i wasnt paying attention to which nozzle i grabbed.
watch out for the diesel lol
Old 12-13-2007, 07:58 PM   #9
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Re: Premium fuel-who uses it??

Quote: Originally Posted by Goran
i put it in 2x when it was new...

difference in mileage was 600km on a tank - regular
650km on a tank - super

no diff in power...
hmm thats a good point. the tank last longer with super. sure its 2.00 difference in price but you have less of a visit to the pumps. it kind of works out. but does it create more carbon buildup on the intake? i thought i read that somewhere but just cant find it again.
Old 12-13-2007, 11:22 PM   #10
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Re: Premium fuel-who uses it??

Quote: Originally Posted by greencactus3
watch out for the diesel lol
haha, i thought about that. but they put those on complete different pumps, and the pump is green- kinda easy to notice.
Old 12-13-2007, 11:48 PM   #11
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Re: Premium fuel-who uses it??

This past weekend I put 15gal of 91 and 3.4gal of 101. It ran much smoother IMO. Might just be in my head but I though I would do it for shits and giggles.
Old 12-13-2007, 11:51 PM   #12
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Re: Premium fuel-who uses it??

i run premium in my blazer. but i have to cause i have my hypertech programmer set on the highest setting and its required.
Old 12-23-2007, 04:41 PM   #13
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Re: Premium fuel-who uses it??

mine does run smoother with prem but gas mi is the same
Old 12-25-2007, 12:20 PM   #14
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Re: Premium fuel-who uses it??

I noticed no difference in any GM car or truck, but I did notice on my turbo 300zx haha
Old 12-31-2007, 05:58 AM   #15
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Re: Premium fuel-who uses it??

Mine runs alot smoother on premium, and I get about 3 MPG more fuel economy. It tends to keep your valves cleaner as well. More additives so it burns more completely and thus you get more effeciency and power (though it might not be noticable to the feel).

-Kevin
Old 01-05-2008, 11:11 PM   #16
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Re: Premium fuel-who uses it??

of you het 93 use chevron with techron or instead of buy 93 just buy a bottle of techron every oil change I know it is $15 but it is worth it
Old 01-12-2008, 06:16 AM   #17
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Re: Premium fuel-who uses it??

Run regular, if it knocks under load ie. going up a hill while accelerating, then step up one grade of fuel. If it still knocks the run Hi-test. What I have run into and a buddy of mine is a prime example, he runs Super all the time. He thinks Super or Hi-test is Hi-performance. Can't get it thru his head that it has additives to prevent detonation. Oh well!!!!!!
Old 01-12-2008, 10:41 AM   #18
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Re: Premium fuel-who uses it??

the 01 gmc 2.2l gets 87, drive 150 miles a day, can not afford the 3.50 gal for 93.

the 94 gmc 4.3l gets 89, gets the best gas mileage and no spark knock

the 01 WS6 5.7l has to get 93, if I Could find higher I would use it.
Old 01-12-2008, 12:22 PM   #19
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Re: Premium fuel-who uses it??

regular unleaded here is already $3.05 a gal, fuk premium i cant afford it. plus unleaded makes my truck move so im stickin with it.
Old 01-12-2008, 11:48 PM   #20
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Re: Premium fuel-who uses it??

87.. no need for any thing else right now...


The VW gets 93 since its a turbo. The Stang gets 93 as well.

Last edited by Ordie : 01-12-2008 at 11:54 PM.



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