Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×

Go Back   Montana Owners Club - Keystone Montana 5th Wheel Forum > GENERAL DISCUSSIONS > Sitting around the Campfire
Click Here to Login

Thread Tools Search this Thread Display Modes
Old 05-21-2022, 06:28 PM   #1
Montana Master
rohrmann's Avatar
Join Date: Oct 2012
Location: Box Elder
Posts: 4,074
M.O.C. #12947
E15 gasolene warning

I just saw that the Coast Guard has issued a warning that boat owners should not be using E15 ethanol fuel in their boat motors due to warranty voiding and also possible fires due to overheating. This got me to checking, and our Honda generators are restricted to no more than E10 gasoline, and I'm pretty sure most other small engines have the same warnings. I also read recently when it was announced that gasoline could be E15 now, that there would not be any labels on the pumps that would indicate whether the gas was E10 or E15 from the pump.
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
rohrmann is offline   Reply With Quote
Old 05-21-2022, 07:27 PM   #2
Montana Master
mhs4771's Avatar
Join Date: Dec 2009
Location: Sebring
Posts: 3,444
M.O.C. #9969
I try to use only non-ethanol gas in all our small motors. If I can't get non-ethanol gas I'll treat what I get to counter the ethanol.
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
mhs4771 is offline   Reply With Quote
Old 05-22-2022, 05:18 AM   #3
Seasoned Camper
Join Date: Oct 2021
Location: Possum trot
Posts: 52
M.O.C. #29795
I also try to use non-ethanol gas in all my small engines ( witch is very easy for me as I work for a fuel distributor and we carry it all the time). If I have to get gas that is ethanol gas I blend it with my non ethanol gas so that it brings the ethanol level way down.
Trevor is offline   Reply With Quote
Old 05-22-2022, 08:41 AM   #4
Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,608
M.O.C. #12156
I use Stabil routinely in my boat, tractor, anything running on gas not used heavily. Here on the lake, couple of marine repair operators have indicated ethanol gas has resulted in increased repair revenues. The trouble here is the primary sources for non-ethanol gas are dock pumps and their prices have been historically 80 to 90 cents higher per gallon. First I had heard of overheating potential.
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
1retired06 is offline   Reply With Quote
Old 05-22-2022, 09:39 AM   #5
Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 6,502
M.O.C. #6433
Apparently the overheating issue only affects marine motors for some reason. E15 has been certified ok by auto manufacturers since 2001. Very few stations around here sell E15. I think it is labeled 88 octane on stations that do sell it.
Bill & Patricia
BB_TX is offline   Reply With Quote
Old 05-22-2022, 10:02 AM   #6
Bourbon County
Established Member
Join Date: Feb 2022
Location: Cynthiana
Posts: 44
M.O.C. #30449
My understanding is that the ethanol content in gasoline before it had to be posted at the pump was regulated by individual states. In my states it's 15%, some stations post content at 15%, others don't even selling the same brand.

Ethanol can be damaging to any air cooled engine, not just outboard boat motors. I've been told that if you use the higher octane premium fuel, it's harder to get the higher octane with much ethanol content. I burn premium fuel in all of my small engines; I burn about $25 in fuel just mowing and trimming my yard.
Bourbon County is offline   Reply With Quote
Old 05-22-2022, 10:55 AM   #7
Seasoned Camper
Join Date: Oct 2021
Location: Possum trot
Posts: 52
M.O.C. #29795
The highest non ethanol gas is that we get around here is 90 octane. All Gas satiation gas starts out at 84 octane then boosted to 87, 89, or 93 ( premium ) by adding ethanol.
Trevor is offline   Reply With Quote
Old 05-22-2022, 11:06 AM   #8
Montana Fan
77cruiser's Avatar
Join Date: Mar 2020
Location: Frostbite Falls
Posts: 220
M.O.C. #26015
The reason for overheating is the more alcohol in the gas the leaner the mixture is unless you can adjust for it. Aside from that the other issues are corrosion & water absorption from the air.
2018 HC 331rl
2019 Chevy 3500 Duramax
77cruiser is offline   Reply With Quote
Old 06-02-2022, 08:47 AM   #9
Montana Fan
Mark7's Avatar
Join Date: Sep 2016
Location: Fargo
Posts: 122
M.O.C. #19032
In ND we can buy 87 octane non-ethanol fuel at the pump at some stations. That is all I buy for anything except my brides van. It costs about 12 to 15 cents / gallon more.
2004 Montana 3295RK
2014 Ram / Cummins 2500
Summer season weekend warrior
Mark7 is offline   Reply With Quote
Old 07-12-2022, 12:01 AM   #10
Montana Fan
Join Date: May 2018
Location: san andreas
Posts: 206
M.O.C. #21805
it is very costly. but you can buy pure gasoline from the big box hardware stores.
mix this min 50-50 with pump gas for less gunk in your gasoline. then after usage run even more pure gasoline in the mix till the tank runs dry. this is after running cleaners to try and remove the gunk pump stuff. your carbs, and injectors will thank you.
and this goes for any and / all small motors. and / or motors not used everyday.
packnrat is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Forum Jump

Powered by vBadvanced CMPS v3.2.3

This website is not affiliated with or endorsed by Montana RV, Keystone RV Company or any of its affiliates. This is an independent, unofficial site.

All times are GMT -6. The time now is 12:36 AM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2022, vBulletin Solutions, Inc.