What Octane grade are you running?

[Vigilant]

I have no doubt that 89 is best without a tune.

 

[TheFuzz]

I have no doubt that 89 is best without a tune.

IF you have 89 available.

Here it's 85, 87 and 91. With those options my preference is paying the extra for 91.

 

[Phil DeVtec]

I'm running 89...I don't see a real need to run 91 or 93. I run 93 on my G35, but that's what the factory called.

 

[zieglerj-pdm-specialist]

Dad is lead researcher, My brother is in Iraq for two tours I just heard.

I don't mean to sound like a dick...but you don't have a clue what you are talking about. Or, if you do, you've done a less than stellar job of articulating your point. Lets get a couple of things laid out on the table.

1. Not all areas have fuel without ethanol. Around here, all gas stations have ethanol and there isn't anything we can do about it.

2. Not all areas have access to 93+ octane fuels. 91 is the best that it gets from here to Cali, unless you're paying out the ass for race fuel (which isn't practical for daily driven vehicles).

3. If a vehicle is optimized for high octane fuel from the factory, 90 octane should be sufficient, motorcycles included, due to the varying octane levels of "premium" fuel around the country. The lowest grade of premium I have encountered is 90, sold at most stations in NW texas and some parts of NM (and possibly other areas of the country too, those are just the places I've found it). It would be counterintuitive of a car manufacturer to produce a vehicle that requires fuel of a higher grade than can be commonly found anywhere in the country.

Is your R1 modified from stock? If not, then it shouldn't require 94 octane...if that were the case, it'd be awfully hard for Yamaha dealers to sell them in parts of the country that only have 90 or 91 at the pump. And as far as your Yukon goes, you mentioned that it's turbocharged and requires a "richer octane" due to the turbo and pulse plugs (which are a gimmick btw) and K&N. I'm assuming you meant "higher" octane, and a "richer" A/FR, which would only be required because of the turbo, the other mods notwithstanding. Then, again you mentioned needing 93 on your Bonneville because of the K&N intake. Really? If you think you need to run 93 simply because you slapped an intake on your car, then I've got a bridge to sell you. An intake has nothing to do with requiring a higher octane.

I think you need to do a little more research on your own mods and what types of fuel are available in a given area before making suggestions as to what other people should put in their tank. GM might market these trucks as being capable of running on 87, but I trust the folks at Black Bear who have scanned and tuned thousands of these trucks. If they say 89 is where it's at to prevent pinging, I'm inclined to listen to them. YMMV.

My brother is taken a role of one year field work and the year training into become a man of office. What they don't understand he is a warrior and he Kills first doesn't dive a shit later. I bet he will piss someone off or beat the shit out of some one before he makes it anywhere in office. He is a soldier. A Killer not a egg stroker. If he read this my ass is kicked .
I agree hands down the higher the octane the better the fuel, It will help Clean your insides out plus you may get 1 t 2 miles more to than a gallon but is it worth the extra $.50 to a $1.00 for a gallon when 87 does the same thing. If your Vehi8cle is not made for ethanol keep it out because all it does is gum up your cylinders and create problems for you down the road. You can ask the head research Professor on the negative affects it allow into out vehicles and how hard is it to get them out. He took a Brand new 2010 Tahoe and ran it through the test he only used the 89 octane fuel with 10% ethanol with that small amount of ethanol it should not harm anything. But after 100,000 miles they took the care apart and couldn't even pressure wash gunk that was caused from the ethanol. It is suppose to burn clean it sure does for emissions but for what it leaves behind have fun getting that out. You will need a new engine after 100K miles instead of 500K tested with 85 octane. *5 octane is still running great with a small drop in MPG it gets 15MPG on the highway and the ethanol Tahoe gets 9 miles per gallon and has problems that we are not going to address until it dies and see how much longer the Tahoe goes. Hands down ethanol gasoline even if only 10%
added it destroys modern engines. If the car says E=87 ethonal approved than it will handle it better but Im trying to make a point for the people at the pump going for the higher octane ( *89) will be better for there car. But it is slowly destroy there care.

 

[xwt572]

95, 98 or E85, 2002 Z vin...
At the cost of;
8.50 usd for 95
8.80 usd for 98
6.05 usd for E85
Oh yeah, I´m in Sweden, Europe.

 

[08grey]

How much for the bridge ?

 

[xwt572]

How much for the bridge ?

Was this to me?
If so, what bridge?
And why, why, why, why...