Reply
 
Thread Tools Display Modes
Old 07-07-2012, 05:32 PM   #1
Member
 
Auto4's Avatar
 
Join Date: Jun 2012
Location: Lanesboro, Ma
Posts: 74
Premium Vs Regular Gas

I just finished a trip to Maine. I wanted to see if the price of premium gas was worth the added cost. On my trip there I filled the tank and got 9.5 mpg on the trip up. On my return trip I filled up with regular and Got 8.7 mpg. These numbers were based on the trucks computer.

Truck: 2007 Toyota tundra 4X4 with 5.7 engine
TT. 2011 flagstaff 831 BHDS

Based on these numbers I can't see where the extra cost of the premium is justified. Has anyone else seen better numbers by switching
to premium?

The trip was 400 miles round trip. Do I need to run the premium for more then 200 miles to get better results?
__________________

__________________
Auto4 is offline   Reply With Quote
Old 07-07-2012, 05:36 PM   #2
Site Team
 
KyDan's Avatar
 
Join Date: Mar 2008
Location: Louisville, KY
Posts: 6,720
Consumer reports and car and track and many others say the only reason to
buy premium gas is IF your vehicle maker recommends it in the manual.
If your truck says it's OK with regular that's what you should use.
Premium gas only has extra anti knock ingredients.
If your engine does not knock (ping) you don't need them!
__________________

__________________
Peace!
Dan & Rita D
2004 5.3L Silverado 1500 ext. cab 2WD
1999 Suzuki Intruder Motorcycle
Blue Ox WD hitch, AirLift load levelers

Camping days 2010-53, 2011-47, 2012-41,
2013-41, 2014-31, 2015-40, 2016-44, 2017-63
KyDan is offline   Reply With Quote
Old 07-07-2012, 06:10 PM   #3
Senior Member
 
dretired's Avatar
 
Join Date: Feb 2011
Location: Michigan
Posts: 1,037
My last camping trip ...i filled my F150 with E-85 @ $3.09 a gallon drove 110 miles got 10.5 mpg average... i refilled with 89 octane at $3.59 a gallon and averaged 11.5 mpg on the 110 mile return trip
__________________
2014 Crusader 325 TE....2012.. F 250.. Supercab XLT, 4x2 , diesel....days camped 2011 ... 28.... days camped 2012...115 ... days camped 2013...155...2014...171 and counting
dretired is offline   Reply With Quote
Old 07-07-2012, 06:13 PM   #4
Senior Member
 
backin15's Avatar
 
Join Date: Mar 2010
Posts: 390
I agree - using premium should not increase your gas mileage. It may give you a bit more pep while towing if the programming on your engine will allow but if you don't need it don't buy it. My Dodge requires mid grade 89 octane which I can usually find for the same price as regular. I will treat it to a tank of premium if I am towing on a hot day though because it burns cooler.
__________________
backin15 is offline   Reply With Quote
Old 07-08-2012, 07:29 AM   #5
Site Team
 
KyDan's Avatar
 
Join Date: Mar 2008
Location: Louisville, KY
Posts: 6,720
Quote:
Originally Posted by backin15 View Post
I will treat it to a tank of premium if I am towing on a hot day though because it burns cooler.
Why? Does your truck over heat in hot weather??
__________________
KyDan is offline   Reply With Quote
Old 07-08-2012, 07:53 AM   #6
Senior Member
 
M109Rrider's Avatar
 
Join Date: Oct 2010
Location: Chesapeake, Va
Posts: 883
Premium gas in a lower compression engine that doesn't require it per the OEM is a complete waste of money. Lower octane fuel ignites more easily than higher octane fuel. It is needed in high compression engines because sometimes the heat generated from the compression in the cylinder can ignite the fuel prematurity called pre detonation. Pre detonation (pinging or knocking sound) is very bad for a engine.
__________________

Jason and Billie
2005 Dodge Ram 2500, 4X4, QC/SB 5.9L Cummins
15k non-sliding Hidden Hitch (they lied, it's not hidden at all)
2011 Prime Time Crusader 320RLT
"PT Crew Member Since 11/2010"
M109Rrider is offline   Reply With Quote
Old 07-08-2012, 08:06 AM   #7
Senior Member
 
jd-ford-hd's Avatar
 
Join Date: Aug 2009
Location: Middle Tennessee
Posts: 160
Quote:
Originally Posted by M109Rrider View Post
Premium gas in a lower compression engine that doesn't require it per the OEM is a complete waste of money. Lower octane fuel ignites more easily than higher octane fuel. It is needed in high compression engines because sometimes the heat generated from the compression in the cylinder can ignite the fuel prematurity called pre detonation. Pre detonation (pinging or knocking sound) is very bad for a engine.
Thank you. Saved me from typing all that..!! Sooooo many people just do not know this. 87 octane belongs in most gas burners, UNLESS, owners manual says different.
__________________
"IF IT AINT GOT A MOTOR, I AINT INTERESTED"
jd-ford-hd is offline   Reply With Quote
Old 07-08-2012, 08:26 AM   #8
Wanna Be Camper
 
SaskCampers's Avatar
 
Join Date: Mar 2010
Location: Moose Jaw, Saskatchewan
Posts: 2,370
Hopefully this link will work.

Premium vs. Regular | Car Talk
__________________

John & Deb
2011 F250 Lariat FX4 Crew Cab 6.2
2011 Flagstaff V-Lite 30WRLS
Days Camped 2016: 3 2017: 0
SaskCampers is offline   Reply With Quote
Old 07-08-2012, 09:03 AM   #9
Senior Member
 
jimh's Avatar
 
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,531
octane slows the burn reducing ping. it's still an explosion.
__________________
jimh is offline   Reply With Quote
Old 07-08-2012, 09:32 AM   #10
Senior Member
 
Great Horned Owl's Avatar
 
Join Date: Feb 2012
Location: Lake County, Illinois
Posts: 301
Quote:
Originally Posted by backin15 View Post
I will treat it to a tank of premium if I am towing on a hot day though because it burns cooler.
Really? That seems very unlikely. Burning cooler would extract less energy. Can you cite any references?

Joel
__________________

__________________
2011 Silverado 2500HD Duramax, 4x4, crew cab, long bed
Palomino Puma 253-FBS, 27' 5th wheel
1994 19' Class B on Chevy chassis
Great Horned Owl is offline   Reply With Quote
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



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 02:42 PM.