|
|
07-31-2011, 08:11 PM
|
#1
|
Senior Member
Join Date: Jul 2011
Posts: 1,144
|
Regular Gas for an 8.1?
Having been the owner of a Tiffen Allegro for one whole day, I have some dumb questions. Do you guys use regular gas, mid-range, or premium? If I recall, the compression ratio is 9.1 to 1. Thanks!
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
07-31-2011, 08:22 PM
|
#2
|
Senior Member
Join Date: Oct 2002
Location: Madison, MS
Posts: 10,527
|
87 octane regular unleaded gasoline with not more than 10% ethanol is the recommended fuel. You can use higher octane, but you don't need it.
NEVER use E85.
Ed
|
|
|
07-31-2011, 09:03 PM
|
#3
|
Community Administrator
Pond Piggies Club LA Gulf Coast Campers Outdoors RV Owners Club Entegra Owners Club Skyline Owners Group
Join Date: Mar 2002
Posts: 40,765
|
Regular.
Lori-
__________________
Lori (& Dave, my spirit guide) - RV/MH Hall of Fame Lifetime Member | My iRV2 Photo Albums
2016 Phoenix Cruiser 2350S, 2018 Phaeton 40IH,2006 Bounder 36Z, 2004 Cougar 285EFS, 2000 Aerolite 25FBR
There is great need for a sarcasm font.
|
|
|
07-31-2011, 10:04 PM
|
#4
|
Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 13,149
|
I put 60,000 miles on my 8.1 and use the lowest grade, usually 87 octane.
In the midwest I ran the 85 octane and did just fine.
__________________
2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
Criticism is easier than Craftsmanship
|
|
|
07-31-2011, 10:07 PM
|
#5
|
Community Administrator
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Sep 2010
Location: Marquette, Michigan "Da UP" & Lehigh Acres Florida
Posts: 21,827
|
I use just regular also.
__________________
John & Cathy R.
06 Pace Arrow 38L Workhorse W24
|
|
|
07-31-2011, 11:20 PM
|
#6
|
Senior Member
National RV Owners Club Workhorse Chassis Owner
Join Date: Apr 2011
Location: Federal Way, Wa.
Posts: 2,901
|
Says regular in the manual---runs great on it
__________________
I do all my own stunts
03 Dolphin LX 6355, Workhorse W22, 8.1 vortec, 04 CR-V, Blue Ox, Brake Pro----Norm, Barb and
Doc(He's a PhD)
|
|
|
08-01-2011, 03:41 AM
|
#7
|
Senior Member
Join Date: Jul 2011
Posts: 1,144
|
Looks unanimous to me! Thank you for the help!
|
|
|
08-01-2011, 08:12 AM
|
#8
|
Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
|
Owner's manual on my 8.1 says Regular and that's what I use.
Many folks are absolutly sure that higher grade gives better something.
And they are right, it gives better profit to the oil company stockholders.
Does nothing for your ride with one possible exception..
If you are working the devil out of an engine,, it **MIGHT** make a difference.. however on the 8.1, I seriously doubt you will ever work it that hard. In fact, I seriously doubt it will make a difference on most any engine manufactured this century.
It did on a 1977 I used to drive which had a defective carb.. I mean I kept records.. When I put a new carb on it.. that changed.
__________________
Home is where I park it!
|
|
|
08-01-2011, 11:47 AM
|
#9
|
Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Apr 2002
Location: Beaverton, OR, USA
Posts: 658
|
In my travels I have found fuel with lower than 87 octane, so I go for whatever rating gets me at or above 87 octane; regular, mid, or premium.
__________________
Alvin/KB7VHI
2002 35R Southwind, W22 8.1L Vortec UltraPower, 19.5' wheels
Toad: Wrangler, lifted and on 35" tires
|
|
|
08-01-2011, 08:54 PM
|
#10
|
Moderator Emeritus
Winnebago Owners Club Workhorse Chassis Owner Coastal Campers Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 23,641
|
Quote:
Originally Posted by Full.Monte
Do you guys use regular gas, mid-range, or premium?
|
Always use 87 Octane, Regular Unleaded or above. In some areas you may have to use 88 or 89 but don't use less.
__________________
03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Taylor Extremes, SGII
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
RV/MH Hall of Fame - Lifetime Member
|
|
|
08-06-2011, 10:17 PM
|
#11
|
Member
Join Date: Oct 2002
Location: Brownsville Tx. 78526
Posts: 92
|
At higher altitude,85 octane performs the same as 87 octane. Just use the gas labeled REGULAR
__________________
Ron
|
|
|
08-06-2011, 10:51 PM
|
#12
|
Senior Member
Join Date: Feb 2010
Location: Sunnyvale, CA
Posts: 1,195
|
As a side note, your engine will actually make LESS power on higher octane fuel. Reason being, all the stuff that boosts octane (and raises the flashpoint of the fuel, so it can be used in higher compression engines) actually reduces the amount of energy in each gallon of fuel. Now, if you have a high compression motor that takes advantage of the fuel, you can get more power... but in an 8.1 designed for 87 octane, you will lose about 3% power.
Steve
|
|
|
08-11-2011, 09:29 PM
|
#13
|
Moderator Emeritus
Winnebago Owners Club Workhorse Chassis Owner Coastal Campers Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 23,641
|
Quote:
Originally Posted by ronmc
At higher altitude,85 octane performs the same as 87 octane. Just use the gas labeled REGULAR
|
I never had the opportunity to try 85. I called the Workhorse Technical Assistance Center (TAC) and told them were I was geographically. I was told to use 87 or higher Octane. This was during our western US tour back in 2005. I didn't have a problem with knock or any other issues using 88 Octane BUT it was more expensive.
__________________
03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Taylor Extremes, SGII
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
RV/MH Hall of Fame - Lifetime Member
|
|
|
05-12-2017, 09:11 PM
|
#14
|
Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: Mar 2017
Location: Drumbo, Ontario
Posts: 92
|
Gas for Vortec 8.1
You may have read all about my saga with my coach. Had a new engine installed in Daytona on my 2008 Itasca Latitude 39W on Workhorse UFO chassis.
Maudlin International did the work. They said I should put in Premium 91 or 93 octane. That is expensive gas. I would like your views on this. Thanks.....
__________________
Travelling with my wife Rita, and our Havanese Ambre, in our 2008 Winnebago/Itasca Latitude 39W, Workhorse UFO R26 Chassis, GM Vortec 8.1, Allison 6 spd. and 2016 Chev. Equinox LT in tow.
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|