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   Thor Forums > Thor Community Forums > Thor RV Lifestyle
Click Here to Login
Closed Thread
 
Thread Tools Display Modes
 
Old 11-30-2023, 04:53 PM   #1
Junior Member
 
Terril Riley's Avatar
 
Brand: Thor Motor Coach
State: Kentucky
Posts: 13
THOR #30679
Octane Booster

I have a 2018 Wind Sport with a V10 engine, has anyone used octane booster to increase power and miles per gallon.

__________________
Terril Riley is offline  
Old 11-30-2023, 04:59 PM   #2
Site Team
 
EA37TS's Avatar
 
Brand: Entegra
Model: Accolade 37TS
State: South Dakota
Posts: 8,643
THOR #1469
Quote:
Originally Posted by Terril Riley View Post
I have a 2018 Wind Sport with a V10 engine, has anyone used octane booster to increase power and miles per gallon.
Snake oil. If you want to boost Octane buy premium gas.
__________________
EA37TS is offline  
Old 11-30-2023, 05:08 PM   #3
Senior Member
 
macdaddy1111's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 35m
State: North Carolina
Posts: 840
THOR #13505
Quote:
Originally Posted by Terril Riley View Post
I have a 2018 Wind Sport with a V10 engine, has anyone used octane booster to increase power and miles per gallon.
I run non ethanol ( boat gas) 93 octane tank full once a year just for good measue

Still get 6 to 7 miles to gallon

I know it makes my boat and every gas power tool on compound run great.
__________________
Retired Squid who has a Retired Squid that drives him around in a RV!
macdaddy1111 is offline  
Old 11-30-2023, 05:33 PM   #4
Site Team
 
16ACE27's Avatar
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 13,876
THOR #7035
Quote:
Originally Posted by Terril Riley View Post
I have a 2018 Wind Sport with a V10 engine, has anyone used octane booster to increase power and miles per gallon.
It doesn't work that way. Your engine is controlled by a computer which is programmed by the manufacturer to run a specific octane fuel. Increasing the octane without retuning the computer does nothing but empty your wallet quicker.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
16ACE27 is offline  
Old 11-30-2023, 06:40 PM   #5
Senior Member
 
Brand: Thor Motor Coach
Model: Axis 24.1
State: Connecticut
Posts: 1,733
THOR #20289
Quote:
Originally Posted by 16ACE27 View Post
It doesn't work that way. Your engine is controlled by a computer which is programmed by the manufacturer to run a specific octane fuel. Increasing the octane without retuning the computer does nothing but empty your wallet quicker.


And whatever mileage benefit you get from retuning and running on premium gas will be eaten up by the increased cost of premium. There is no free lunch!

David
__________________
DavidEM is offline  
Old 11-30-2023, 07:12 PM   #6
Senior Member
 
The Gritz Carlton's Avatar
 
Brand: Thor Motor Coach
Model: THOR Chateua 35SF
State: Florida
Posts: 5,843
THOR #11130
Sadly...but amazingly...its jist a commercial truck with a huge beer cooler, bath and a bed. Agree with above...nothing but an elixir. Same thing the Gypsies sold on The Andy Griffith Show.
__________________
Now an SOB
Traded Thor for Melbourne Prestige 24NP
2018 THOR Chateau 35SF
Two Labs, Bugsie & Blondie
Blondie passed in 2020 at 5 to Leukemia
The Gritz Carlton is offline  
Old 11-30-2023, 07:24 PM   #7
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 2,616
THOR #11781
I ran a tank of non-ethanol fuel on a trip. I did get about 50 miles added to the range, but seat of the pants performance was the same. That being said, modern engines are tuned to run on the widely available E-10 fuel.
__________________
Lt Keefer
2018 Hurricane 29M
CHF, Saf-T-Plus, SumoSprings
Lt Keefer is offline  
Old 11-30-2023, 07:26 PM   #8
Senior Member
 
Brand: Thor Motor Coach
Model: Axis 25.2
State: Indiana
Posts: 272
THOR #30073
If you want to increase efficiency, put a can of Seafoam or Techron in your tank once a year.
FWIW, I run 87 all the time in my cars that "recommend" premium. Many 100ths of thousands of miles without even a hickup!!
__________________
2018 Axis 25.2 V10; 2021 Genesis GV80 3.5
SGilbert is offline  
Old 11-30-2023, 08:20 PM   #9
Senior Member
 
Dan-sr@perra-us.net's Avatar
 
Brand: Thor Motor Coach
Model: ACE 30.3
State: Iowa
Posts: 1,138
THOR #28145
Quote:
Originally Posted by 16ACE27 View Post
It doesn't work that way. Your engine is controlled by a computer which is programmed by the manufacturer to run a specific octane fuel. Increasing the octane without retuning the computer does nothing but empty your wallet quicker.
While it is certainly true that octane does not matter in a carbureted engine that blanket statement does not apply to modern fuel injected engine. A more accurate statement is that the computer is programmed to accommodate factors such as octane, altitude, and power demands. It does this by adjusting the air/fuel ratio and ignition timing. The amount of fuel metered depends on the real time condidtions.

While running higher octane is not required the Ford F53 owner's manual for my 2018 ACE does say that in hot weather it may be necessary to switch to premium to prevent knocking.

As for increased milage. some years ago, I did some experimentation with different fuel types in a flex fuel Chrystler 200. I would run the tank as close to empty as I was comfortable, then I would fill with the new fuel run that near empty, refill again with the new fuel. and then monitor the fuel milage over several tank fill-ups. This is what I found.
  1. E85 got the worst milage but so long as the price was $1.00 or more cheaper than e-10 the cost per mile was better.
  2. E-10 87 octane regular got better MPG then E-85.
  3. E-0 87 octane regular got better MPG than E-10.
  4. Finally E-0 Premium 91 octane got the best MPG.

The real question you need to be asking is, "How many miles per dollar are you getting. At the time I ran my experiments I was most interested in the relative cost per mile differences between E85 and everything else mostly because it appeared to me that retailers were charging a premium price for the E-85 because it was a "green" fuel. My experiments proved to me that E-85 prices that are less than a $1.00 cheaper than E-10 regular is overpriced when you consider dollars per mile.

With all that said, yes premium will get you better fuel economy in modern fuel injected engines but will do nothing for carbureted engines. This is because modern fuel injection engines will make adjustments to the ignition timing and air/fuel ratio to compensate for altitude and fuel octane. Any of us old enough to remember the part of owner's manuals talking about going to a dealer to get your car tuned for running at a high altitude or for low octane fuel. Now adays the engine computer handles all that tuning on the fly. How else do you explain that an engine with a compression ratio that exceeds 9 to 1 can manage to run 87 octane fuel without blowing it's self up? The engine computer allow running 87 octane fuel by changing the timing and air fuel ratio to less efficient settings to prevent engine knock. Less efficient means less fuel efficiency.

So, what you really need to figure out is how many dollars per mile you spend. Unfortunately, that is very difficult to figure out simply because your cost for fuel is constantly changing as are driving conditions. You might find that in your home market you get the most miles per dollar on premium. However, that gets thrown out the window if the price difference of your fuel choices is thrown out of sync. You may find that when premium cost .30 cents per gallon it makes sense to burn premium. However, when that difference jumps to $1.00 per gallon you end up spending more even though you get better fuel MPG.
__________________
Dan
2018 Thor ACE 30.3
Towing 2020 Jeep Gladiator

Former 1996 28' Tiffin Allegro owner
Dan-sr@perra-us.net is offline  
Old 12-01-2023, 01:51 AM   #10
Senior Member
 
dkoldman's Avatar
 
Brand: Still Looking
Model: Sunstar 29VE Winnebago
State: Texas
Posts: 5,494
THOR #13058
Quote:
Originally Posted by 16ACE27 View Post
It doesn't work that way. Your engine is controlled by a computer which is programmed by the manufacturer to run a specific octane fuel. Increasing the octane without retuning the computer does nothing but empty your wallet quicker.
Does that apply in reverse as well, say you traveling in New Mexico / Colorado and buy 85 Octane or less gas?

I gave up a long while back trying to get better gas mileage, I just don't won't to ruin the engine.
__________________
2019 Sunstar 29ve; Toad Lincoln Navigator; RVi Brake 3 & Command Center; Roadmaster Nighthawk Tow bar & Baseplate; Sumo Springs; Safe T Plus; Onan EC-30 AGS; Vmax 250ah AGM; T-Mobile Internet; H/W Heater / Chassis Disconnect Switches; Southwire Surge Guard 44270 & 34951 w/Monitor 40301; Jet Flo Macerator; Alpine SPE500 Speakers; Visio M21D-H8R
dkoldman is offline  
Old 12-01-2023, 02:02 AM   #11
Senior Member
 
Brand: Thor Motor Coach
Model: Chateau 24F
State: Ohio
Posts: 3,980
THOR #16721
A Sunoco near me sells high octane "racing fuel". Must be good stuff for "race vehicles" tuned to run on it!

Unfortunately the only mileage or performance boost for your motorhome would come from a miniscule weight different of your wallet.

Don't buy the hype. You will get "somewhere" around 10mpg. The way gasoline prices fluctuate, worrying about the difference between 8mpg and 12mpg is counterproductive. If that's a major concern, you chose the wrong hobby.

Just buy the cheapest lawnmower gas that runs your motorhome and enjoy your travels!
__________________
Chateau_Nomad is offline  
Old 12-01-2023, 02:42 AM   #12
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 4,126
THOR #6411
The V-10 in the 2016 F-53 chassis has a compression ratio of 9.2:1. It does NOT have a knock sensor and has no fuel type sensor. Any fresh fuel of a octane rating (R+M/2) of 86 or greater is suitable for any 6 speed F-53 V-10 at sea level. Minimum octane required decreases with altitude.
__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
Beau388 is offline  
Old 12-01-2023, 03:40 AM   #13
Senior Member
 
MJC62's Avatar
 
Brand: Thor Motor Coach
Model: A.C.E. 27.2
State: Indiana
Posts: 1,784
THOR #14698
Quote:
Originally Posted by Beau388 View Post
The V-10 in the 2016 F-53 chassis has a compression ratio of 9.2:1. It does NOT have a knock sensor and has no fuel type sensor. Any fresh fuel of a octane rating (R+M/2) of 86 or greater is suitable for any 6 speed F-53 V-10 at sea level.

Minimum octane required decreases with altitude.
I have often wondered about that. At what altitude can you safely burn the 85 octane? As my Motorhome & toad (Jeep Cherokee) owner's manuals state minimum octane rating of 87, when we are traveling through areas with the 85 octane regular we opt to use the mid-grade.
__________________
2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
MJC62 is offline  
Old 12-01-2023, 03:48 AM   #14
Senior Member
 
Dan-sr@perra-us.net's Avatar
 
Brand: Thor Motor Coach
Model: ACE 30.3
State: Iowa
Posts: 1,138
THOR #28145
Quote:
Originally Posted by Beau388 View Post
The V-10 in the 2016 F-53 chassis has a compression ratio of 9.2:1. It does NOT have a knock sensor and has no fuel type sensor. Any fresh fuel of a octane rating (R+M/2) of 86 or greater is suitable for any 6 speed F-53 V-10 at sea level. Minimum octane required decreases with altitude.
Here is a quote from the owners manual of my 2018 F53 Chassis.

Quote:
FUEL QUALITY
Choosing the Right Fuel

Your vehicle is designed to operate on
regular unleaded gasoline with a minimum
pump (R+M)/2 octane rating of 87.

Some fuel stations, particularly those in
high altitude areas, offer fuels posted as
regular unleaded gasoline with an octane
rating below 87. We do not recommend
these fuels.
For best overall vehicle and engine
performance, premium fuel with an octane
rating of 91 or higher is recommended. The
performance gained by using premium fuel
is most noticeable in hot weather as well
as other conditions, for example when
towing a trailer. See Towing (page 48).

Do not be concerned if the engine
sometimes knocks lightly. However, if the
engine knocks heavily while using fuel with
the recommended octane rating, contact
an authorized dealer to prevent any engine
damage.

Do not use any fuel other than those
recommended because they could lead to
engine damage that will not be covered by
the vehicle Warranty.
Note: Use of any fuel other than those
recommended can impair the emission
control system and cause a loss of vehicle
performance.
Do not use:
• Diesel fuel.
• Fuels containing kerosene or paraffin.
• Fuel containing more than 15% ethanol
or E85 fuel.
• Fuels containing methanol.
• Fuels containing metallic-based
additives, including manganese-based
compounds.
• Fuels containing the octane booster
additive, methylcyclopentadienyl
manganese tricarbonyl (MMT).
• Leaded fuel, using leaded fuel is
prohibited by law.

The use of fuels with metallic compounds
such as methylcyclopentadienyl
manganese tricarbonyl (commonly known
as MMT), which is a manganese-based
fuel additive, will impair engine
performance and affect the emission
control system.
We recommend Top Tier detergent
gasolines to help minimize engine deposits
and maintain optimal vehicle and engine
performance. For additional information,
refer to www.toptiergas.com.
In short it will run ok on 87 octane, but Ford recommends 91 octane for best overall performance.

Also note that while Ford says it is alright to use E15 Onan DOES NOT. So, limit your fuel selection to 10% or less ethanol.

I remembered the part about using 91 octane in hot weather but I forgot the part about using 91 octane at altitude and while towing, which applies to anyone with a TOAD.

Anyone thinking about using an octane booster should read the label very carefully to make sure it does not contain any additives from the forbidden list. And by all means refer to your own owner's manual. There is no guarantee the information for my 2018 F53 applies to any but my own and perhaps other 2018 F53 models.
__________________
Dan
2018 Thor ACE 30.3
Towing 2020 Jeep Gladiator

Former 1996 28' Tiffin Allegro owner
Dan-sr@perra-us.net is offline  
Old 12-01-2023, 03:57 AM   #15
Senior Member
 
Dan-sr@perra-us.net's Avatar
 
Brand: Thor Motor Coach
Model: ACE 30.3
State: Iowa
Posts: 1,138
THOR #28145
Quote:
Originally Posted by MJC62 View Post
I have often wondered about that. At what altitude can you safely burn the 85 octane? As my Motorhome & toad (Jeep Cherokee) owner's manuals state minimum octane rating of 87, when we are traveling through areas with the 85 octane regular we opt to use the mid-grade.
According to FORD the minimum octane rating is 87 no matter what altitude you are driving at. See my post with the quote from my 2018 F53 owners manual.
__________________
Dan
2018 Thor ACE 30.3
Towing 2020 Jeep Gladiator

Former 1996 28' Tiffin Allegro owner
Dan-sr@perra-us.net is offline  
Old 12-01-2023, 04:04 AM   #16
Senior Member
 
Dan-sr@perra-us.net's Avatar
 
Brand: Thor Motor Coach
Model: ACE 30.3
State: Iowa
Posts: 1,138
THOR #28145
in short when in doubt RTFMS Read the fracking Manual Silly.
__________________
Dan
2018 Thor ACE 30.3
Towing 2020 Jeep Gladiator

Former 1996 28' Tiffin Allegro owner
Dan-sr@perra-us.net is offline  
Old 12-01-2023, 04:25 AM   #17
Senior Member
 
dkoldman's Avatar
 
Brand: Still Looking
Model: Sunstar 29VE Winnebago
State: Texas
Posts: 5,494
THOR #13058
I start seeing 86 octane gas at about 2500 ft and 85 octane over 3500 ft or higher.

I think the Duck has to change gas as he drives across his property

I buy the cheapest gas possible so I have been using the 85 octane if it were available. I was hoping via this thread that due to my computer, that I assume I have on my F53; it runs the same as if it were 87 octane.

I have read my manual in the past. I don't remember what it said, but it did not make me think 85 was not safe?

Maybe I use 85 octane and a octane booster
__________________
2019 Sunstar 29ve; Toad Lincoln Navigator; RVi Brake 3 & Command Center; Roadmaster Nighthawk Tow bar & Baseplate; Sumo Springs; Safe T Plus; Onan EC-30 AGS; Vmax 250ah AGM; T-Mobile Internet; H/W Heater / Chassis Disconnect Switches; Southwire Surge Guard 44270 & 34951 w/Monitor 40301; Jet Flo Macerator; Alpine SPE500 Speakers; Visio M21D-H8R
dkoldman is offline  
Old 12-01-2023, 04:44 AM   #18
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 2,616
THOR #11781
Summer of 2022 I drove from Central Texas to Missoula and back. Used plenty of 85 octane along the way and had no ill effects.
__________________
Lt Keefer
2018 Hurricane 29M
CHF, Saf-T-Plus, SumoSprings
Lt Keefer is offline  
Old 12-01-2023, 05:05 AM   #19
Senior Member
 
dkoldman's Avatar
 
Brand: Still Looking
Model: Sunstar 29VE Winnebago
State: Texas
Posts: 5,494
THOR #13058
Quote:
Originally Posted by Lt Keefer View Post
Summer of 2022 I drove from Central Texas to Missoula and back. Used plenty of 85 octane along the way and had no ill effects.

My guess is I have about 5,000 miles with 85 octane. Never heard any knocking, no issue with the Genny although my genny has an altitude adjustment that I change up and down during the trip at gas stops. Really easy to adjust.

Ford recommends a lot of stuff like Genuine Ford Parts, but that does not mean NOT following a recommendation is unsafe. Besides, I don't have any warranty with them anymore to void.
__________________
2019 Sunstar 29ve; Toad Lincoln Navigator; RVi Brake 3 & Command Center; Roadmaster Nighthawk Tow bar & Baseplate; Sumo Springs; Safe T Plus; Onan EC-30 AGS; Vmax 250ah AGM; T-Mobile Internet; H/W Heater / Chassis Disconnect Switches; Southwire Surge Guard 44270 & 34951 w/Monitor 40301; Jet Flo Macerator; Alpine SPE500 Speakers; Visio M21D-H8R
dkoldman is offline  
Old 12-01-2023, 05:19 AM   #20
Senior Member
 
MJC62's Avatar
 
Brand: Thor Motor Coach
Model: A.C.E. 27.2
State: Indiana
Posts: 1,784
THOR #14698
Quote:
Originally Posted by Dan-sr@perra-us.net View Post
in short when in doubt RTFMS Read the fracking Manual Silly.
I read the manuals!!!!
That is why per my post 13, I stated we use mid-grade in areas with 85 regular. What I asked is at what altitude does the 85 come into play if you are so inclined to use it. I didn't ask for the fracking snark!!!!!
__________________
2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
MJC62 is offline  
Closed Thread

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


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 03:53 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2