Quantcast
Jump to content


Mule Pro FX Octane Requirement

davegood

By davegood
in Kawasaki UTV SxS Forum

 Share

Recommended Posts

davegood Newbie

davegood

Posted
Posted

Mule Pro FX manual specifies 87 octane gas for the MulePro FX. In the non-mountain states that is "regular" gas. However, in mountain states "regular" gas is 85 octane. Was this an oversight in the manual, or is 87 actually the minimum octane required (this would require "midgrade" gas in mountain states. My Ford 350 V10 vortex requires 87 octane so it is strange that a utv would require the same.

I am still in the "shopping mode" for a utv so the answer to this question will help me decide on brand. Thanks.

  • 5 years later...
cliffyk Rising Star

cliffyk

Posted
Posted

The only way to be sure is to run some and listen for signs (detonation predominately)  of its not having sufficient anti-knock properties for your engine/l location and the weight of your right foot.

Here's a good, "more than you probably want to know",  Octane 101" document.

Your Pro FX is only 9.5:1 compression, that's no where near requiring premium grade fuel. Apparently one or more "automotive engineer" bureaucrats decided that 85 octane would be OK for "regular" grade fuel in the "mountain states".

Oddly, fora  bureaucratic action, there is actually some science behind that--air at higher altitudes has less oxygen content, making it less likely to fuel detonation l (no pun intended). So 85 octane may be OK.

FWIW the owner's manual for my Coleman Outfitter 400 says this about octane--It is incorrect.
Gasoline of Research Octane Number (RON) 91 is the same as an  [R+M]/2 "[(Research + Motor] average, aka  "USA pump rating") of 87.

Its compression ratio is only 9.3:1 for Christ's sake!

ColemanOctane-00.jpg.4a4251fc945f32dcb6772a4f68e7fb44.jpg

 


Just run some, drive normally and listen to what the engine tries to tell you. My 2012 Infinity M37 (11:1 compression ratio ) has a "Premium" (91 [R+M]/2) octane recommendation--however I have been running 89 octane for 8+ years and 112k miles with no problems, even at WOT at 165 MPH...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing

  • Similar Topics

    • strike250
      Free Massimo Buck 400 service manual
      By strike250
      I have the factory service manual available for the Buck 400. Just send me a message with your email and I'll get it to you. Although there is no charge for this, it would be great if  you would visit my website where you could donate any amount to help do things like this with others who need it. Again, there is no charge for this manual, and no obligation to donate. But if you did, I would thank you for sure. Have fun on the trails. www.warriorsoffroad.com
       
      Matt

    • Jim Kessell
      Predator 670 manual oil pressure gauge
      By Jim Kessell
      Hi All
      Just installed a predator 670 on my Landmaster. My question is can I remove the low oil pressure wire fitting and plumb my mechanical gauge into that access point?
      Thanks in advance for your advice !!
      Jim
    • CSM_Retired
      Kioti Daedong K9 2400 Shop Manual
      By CSM_Retired
      View File Kioti Daedong K9 2400 Shop Manual
      This manual is to provide servicing personnel with information on the general speci- fications, service, operating principle, troubleshooting, exploded view including part name, removing and installing procedures for K9 2400/K9 2440 UTV (Utility Vehicle) with high-end technology.
      All information in this manual is based on the latest product information available at the time of publication. Therefore, some of the information in this manual may differ from the machine you have.
      KIOTI has a principle to apply update to the next edition of the manual if there is any. However, KIOTI has no obligation to modify the contents in this manual, especially the contents in the manual which is already distributed or published.
      The modified information is available in KIOTI's online electronic manual system (DEMSS).
      This manual is ultimately to satisfy customers with best performance of this UTV. If there is any typo, wrong information or question for this manual, feel free to contact KIOTI.
      Submitter CSM_Retired Submitted 01/02/2025 Category KIOTI  
    • Brett
      2006 Polaris Ranger 700 side by side idles fine but dies when you touch the gas
      By Brett
      Fuel injected 700 starts great and idles great but touch the gas and it dies
    • Xov
      New AMP Pro Owner
      By Xov
      Just received delivery of a 2024 AMP Pro.  Thought I'd start a thread with my impressions as I use it and learn more.  There doesn't seem to be a whole lot of real-world usage information out there on this model.  Hope this will help others as they research.
      Intended Use Cases
      Fire mitigation / slash removal from a 5 acre forested and well-gamble-oaked property.  The previous owners thought as much about fire mitigation as I do about fashion: not much. Snow removal Stump pulling General hauling (rock, lumber, etc.) Weimaraner energy depletion.  Wasn't an original use case, but a nice added bonus.  Experiences So Far
      Wasn't impressed that two of the bumpers on the underside of the bed where it sits upon the frame were missing.  The metal on metal contact has damaged the powder coating and the frame.  I expect a little better QC.
      I've only put a few hours on it, so not a ton to report on usage.  It isn't quiet; it's silent.  I can't even detect an electric note from the motor. I removed (and subsequently replaced) the motor cover noticed that the motor is German and made by Schambuller.  The motor controller is Italian and made by Dana TM4.  Given the operating specs of both I found on the web, I suspect both are higher quality than the previous Navitas (which is supposed to be decent).  The motor is rated at 25 hp and 71.5 lb-ft of torque.  It feels very powerful.  All the torque is delivered instantly, if desired.
      The bed is huge and has an electric dump as standard.  Great feature but would like it to go up a bit more.  Probably not feasible from an engineering perspective, but I want and I need ;).
      Power steering is nice, but vague.  Probably common to many UTVs, but I am accustomed to more direct results from input.  Plan early and plan often.
      In our first full day of usage, we hauled about 1/2 as much slash as the entire rest of the year when I was doing it by hand cart.  I may get fatter, but I'll also get more done.  After a few days of usage, the battery meter has gone down by 1/10th. 
      Until next time...


UTV FORUMS

MORE SECTIONS

FOLLOW US ON

GET IN TOUCH

  • Automotive Webmaster
×
×
  • Create New...