Anyone Here Use Fuel Additives ? - Page 7 - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 -

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #73  
Old 07-06-2015, 04:54 PM
Premium Member
My Jeep: 2014 5.7L WK2
 
Join Date: May 2013
Location: Colorado
Posts: 4,001
Thanks: 73
Thanked 277 Times in 244 Posts
Rep Power: 46298
lstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond repute
Re: Anyone Here Use Fuel Additives ?

Quote:
Originally Posted by billt View Post
That's another good point. I can find non ethanol 91 octane for some reason a lot easier than I can 89 octane. I much prefer a non ethanol based gasoline...... Although it is getting harder to find.

And "Flex Fuel" is a total joke. I don't think there is a single station in the entire Phoenix metro area that sells E-85.
I may have to move to Phoenix....
OK, maybe Scottsdale.
No foo foo gas? State law, or just fear of armed retribution?

Reply With Quote
Sponsored Links
Advertisement
 
  #74  
Old 07-06-2015, 05:18 PM
Premium Member
My Jeep: 2014 5.7L WK2
 
Join Date: May 2013
Location: Colorado
Posts: 4,001
Thanks: 73
Thanked 277 Times in 244 Posts
Rep Power: 46298
lstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond repute
Re: Anyone Here Use Fuel Additives ?

Quote:
Originally Posted by Wasatchwk2 View Post
A while ago I also read that some states will recommend different octanes based on state and altitude.
It would be a tad complicated if the owner's manual had a formula for reducing the recommended octane per thousand feet of elevation. However you can come pretty close by just looking at the pumps on major brands at sea level and higher elevations.
Reply With Quote
  #75  
Old 07-06-2015, 05:32 PM
billt's Avatar
Senior Member
My Jeep: 2015 5.7L WK2
 
Join Date: Mar 2015
Location: Glendale, Arizona
Posts: 1,341
Thanks: 316
Thanked 247 Times in 176 Posts
Rep Power: 2021
billt is on a distinguished road
Re: Anyone Here Use Fuel Additives ?

There is a hell of a lot more that plays into octane than simply what the owners manual says. High temperature, heavy load, (towing), density altitude, all play into it.

Perhaps in most cases 89 octane will work satisfactorily in a 5.7 HEMI. But there are too many variables. My car operates in very high temperatures. That alone can cause knocking and lack of performance. While 91 may or may not be necessary in Fargo in January, it may very well be in Phoenix in June.

I would like to know what has changed in the engine itself, that dropped the octane call out from 91 to 89? Other than the desire for Jeep's customers to be able to burn cheaper fuel. In any event, I'll play it safe and run 91 in my G.C. I'll save the few lousy pennies somewhere else.
Reply With Quote
The Following User Says Thank You to billt For This Useful Post:
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Method for adding fuel additives? ZionsvilleJeep 2014+ Jeep Grand Cherokee Ecodiesel 3.0 16 03-23-2015 04:36 PM
Diesel Fuel Additives torque85 2014+ Jeep Grand Cherokee Ecodiesel 3.0 19 05-26-2014 10:18 AM
Bio fuel additives kellys_eye Export & Diesel Powered Jeep Models 2 01-25-2014 01:02 PM
Diesel fuel additives airmail96 Export & Diesel Powered Jeep Models 14 01-15-2014 02:27 AM
fuel additives Chunderboy Grand Cherokee - WK2 - 16 10-14-2013 09:19 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 01:20 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.