What Octane Do You Use In Your 4.0L V6?

chris4x4 · 07-05-2009, 07:19 AM

Quote:

Originally Posted by buck

It's pure marketing. It's a filler. Nitrogen is intert, meaning it remains unchanged throughout the combustion process (for the most part).

Correct. In the combustion process of an internal combustion engine, there is already 78% NITROGEN content in the air/fuel mixture. Nitrogen is a temperature reducing dilutant. Nitrogen reduces combustion efficiency by absorbing heat from the combustion process. This recuces the heat availible for trasfer thru the heat exchange surfaces.....cylinder walls, piston, etc.. Lower temps lead to MORE carbon build up in the engine! It also increases the volume of combustion by products. At high temps., Nitrogen can combine with Oxygen to produce oxides of Nitrogen, which are toxic polutants. This being said, I find it ironic that some Fuel companies are actually marketing "Nitrogen enriched" fuels as a GOOD thing. Is the general public so un aware the air in front of their face is 78% Nitrogen?

edc · 07-05-2009, 08:40 AM

I use shell or bp 93 octane all the time.

rossk35 · 07-05-2009, 10:15 PM

I've always used 92, but I have to now because of the s/c.

gatortrades · 07-06-2009, 04:37 AM

I use 87 and I get 21-23 mpg in a mix of city and highway.

Recently on a very empty tank, I used a fuel system cleaner and filled it up with 93 octane. I was on a long trip so it was a good test to look for mileage gains. I got 18 mpg with that tank. I filled it up with 87 again, and I am back at 21-23 mpg. Go figure.

DdayIsNear · 07-06-2009, 06:34 AM

2 points...1st - i use regular (87 in jersey) and seems to do fine. may try the sunoco 100 octane race fuel for shits n giggles, but we'll see. even for my ninja, i use regular...but its a parallel twin not inline 4. i do know that midgrade gas is useless. its better to use jus tsuper or just regular. no inbetweens. as my life experience has taught me.2nd - i see a lot of colorado residnets posting here. i am in co right now and do some wheelin with a bunch of people....if youguys are interested in coming along...they go every weekend and its great times. the even go to some 8-9 rated trails. but we only ride with people who practice trail etiquite and saftey, because we do not wanna haul anyone up fromthe bottom of a cliff or ledge. agian, great times if ur up for it. we even go wheelin with an H1 driven by a chick, its great watchin a 5 ton monster hit the trails. 1/4 steel plate along the entire bottom of the rig, STOCK!!!!

A7XT · 07-06-2009, 07:47 AM

I use 87 because I am broke after buying this truck and its also getting me 18 mpg so im happy

MassTaco · 07-06-2009, 08:21 AM

Quote:

Originally Posted by DdayIsNear

may try the sunoco 100 octane race fuel for shits n giggles, but we'll see.

I wouldn't do this if I were you. The higher the octane of a fuel, the slower the combustion time, requiring more adavanced timing. What this means is that if you run race fuel in a "stock" engine, combustion may still be taking place as the exhaust valve opens raising exhaust temperatures. What's bad about higher exhaust temps? Your catalytic converters won't like overly high temps and will likely prematurely fail. As there is virtually no difference in specific energy between 87 and 100 octane, there is no gain to be made. Race fuels are made for engines with high compression ratios that run at high RPM because it allows for more advanced timing without detonating.

carmellocafe · 07-07-2009, 06:50 PM

I've tried 87, 89, & 91. 87 definitely rendered the best MPG for me. Didn't see even the slightest difference in performance from higher octane. I'll be sticking with 87.

thebigk · 07-07-2009, 09:47 PM

86.....it's "regular" gas here.

Veccster · 07-09-2009, 09:21 AM

I use BP 93 or Shell V-Power (93) and am getting about 1.5mpg better than when I used 87. I have been tracking this for the last 7 tanks. It varies but this is an average increase.

I also experienced a noticeable increase in throttle response. I like to get going quick after stops and I noticed a performance increase when I started using 93.

I would use 91 but we only have 93 around here.

Dilsky · 07-09-2009, 09:39 AM

Shell V-power FTW. I am a huge fan of air miles though haha......

RckyMntns · 07-09-2009, 03:13 PM

I use 85 and get 20 mpg with Mud-Terrian tires and 3 inch lift.

jtav2002 · 07-09-2009, 03:18 PM

Unless you're tuning for higher octane gas it's kind of a waste of money to put in anything higher than recommended. 87 is recommended so that's what the engine is going to know how to run best on. It's really not going to know what to do with the higher octane.

jandrews · 07-09-2009, 03:26 PM

Quote:

Originally Posted by jtav2002

Unless you're tuning for higher octane gas it's kind of a waste of money to put in anything higher than recommended. 87 is recommended so that's what the engine is going to know how to run best on. It's really not going to know what to do with the higher octane.

87 is the minimum rating.

Read your user's manual...the 1GR-FE V6 was researched with 91 octane...

jtav2002 · 07-09-2009, 03:30 PM

Gotcha. I'll read once I take delivery haha. But generally speaking with the vehicles I've had experience with you'll gain nothing from going higher than the recommended fuel if you're not tuned for that.

chris4x4 · 07-09-2009, 03:33 PM

Quote:

Originally Posted by jandrews

87 is the minimum rating.

Read your user's manual...the 1GR-FE V6 was researched with 91 octane...

Ummm....What do you mean "it was researched with 91"....

jandrews · 07-09-2009, 05:38 PM

Quote:

Originally Posted by chris4x4

Ummm....What do you mean "it was researched with 91"....

Well, as you know Chris, Toyo states "research number 91" regarding octane for the 1GR-FE...I'm assuming this means they pulled the rating numbers off of testing done with 91 octane...

Quote:

Originally Posted by jtav2002

Gotcha. I'll read once I take delivery haha. But generally speaking with the vehicles I've had experience with you'll gain nothing from going higher than the recommended fuel if you're not tuned for that.

I agree, but here's the thing: The Taco V6 is tuned for 91.

Kidd · 07-09-2009, 05:41 PM

3rd fill done today and it was 92 oct....

Old Soul · 07-09-2009, 06:07 PM

Quote:

Originally Posted by Kidd

3rd fill done today and it was 92 oct....

is ethanol being added to the fuel in Hawaii? just curious, thanks

DdayIsNear · 07-09-2009, 11:05 PM

what i dotn get is how can it be tuned for 91, if some states do not even pump 91 due to elevation....is there hard evidence to prove this...a document or something....i would like to see it....hopefully it exists

View Poll Results: What Octane do you use in your 4.0 V6?
87	344	57.33%
89	78	13.00%
91	108	18.00%
93	70	11.67%
Voters: 600. You may not vote on this poll

07-05-2009, 08:40 AM	#42
edc Senior Member Joined: May 2009, #16841 Location: ILLINOIS Gender: Male Posts: 140 09 tacoma trd crew cab 4x4 2009 Double Cab Automatic v6 revtek 3" liftkit,viper 901 alarm,trd cai,17x9 motometal955,flowmaster40 muffler,cobra sxt cb,k2motor headlights,kl71 kumho tires	I use shell or bp 93 octane all the time. __________________

07-05-2009, 10:15 PM	#43
rossk35 Do Work Son! Joined: Mar 2009, #15197 Location: hawaii Gender: Male Posts: 390 07 TRD Sport Supercharged 2007 Double Cab Automatic 4.0 TRD S/C/TRD Intake/TRD Boost Gauge/DT Headers/OEM TL/ZKW retro/Pioneer DVD w/Ipod/Magnaflow/20% Tint/BHLM/JL 10" sub, JL VR components, JL 450/4 amp/s2k ant./Helwig Sway bar/Viper 791/ 18" limited 4runner rims	I've always used 92, but I have to now because of the s/c. __________________ TRD S/C/APR 2.85 Pulley/TRD Intake/TRD Boost Gauge/DT Headers/OEM TL/ZKW retro/Pioneer DVD w/Ipod/Magnaflow/20% Tint/BHLM/JL 10" sub, JL VR components, JL 450/4 amp/s2k ant./Helwig Sway bar/Viper 791/ 18" limited 4runner rims

07-06-2009, 04:37 AM	#44
gatortrades Junior Member Joined: Feb 2007, #863 Posts: 10 05 Doublecab, PreRunner, SR5, TRD Off-Road 2005 Double Cab Automatic	I use 87 and I get 21-23 mpg in a mix of city and highway. Recently on a very empty tank, I used a fuel system cleaner and filled it up with 93 octane. I was on a long trip so it was a good test to look for mileage gains. I got 18 mpg with that tank. I filled it up with 87 again, and I am back at 21-23 mpg. Go figure. __________________ 2005 Silver Double Cab TRD PreRunner

07-06-2009, 06:34 AM	#45
DdayIsNear Im an individual like everyone else Name: Crazy Eddie Joined: Jun 2009, #18432 Location: North West Jersey Age: 30 Gender: Guy Posts: 1,344 V6 SR5 TRD Sport 2007 Double Cab Manual V6 AVS Window Visor, Factory Tow Package, TACOMAWORLD.COM Sticker, Blue Interior Dome Light Condom, Grillecraft Black MeshGrill, Devil Horns Toyota Logo	2 points...1st - i use regular (87 in jersey) and seems to do fine. may try the sunoco 100 octane race fuel for shits n giggles, but we'll see. even for my ninja, i use regular...but its a parallel twin not inline 4. i do know that midgrade gas is useless. its better to use jus tsuper or just regular. no inbetweens. as my life experience has taught me.2nd - i see a lot of colorado residnets posting here. i am in co right now and do some wheelin with a bunch of people....if youguys are interested in coming along...they go every weekend and its great times. the even go to some 8-9 rated trails. but we only ride with people who practice trail etiquite and saftey, because we do not wanna haul anyone up fromthe bottom of a cliff or ledge. agian, great times if ur up for it. we even go wheelin with an H1 driven by a chick, its great watchin a 5 ton monster hit the trails. 1/4 steel plate along the entire bottom of the rig, STOCK!!!! __________________ 2007 Silver Tacoma V6 SR5 TRD<>Manual Trans<>Tow Package<>TACOMA WORLD STICKER<>Blue Dome Light<>Devils Horns Emblem<>Grillecraft Black Mesh Grille<>Summit Racing Bed Mat<> 2007 Kawasaki Ninja 650r

07-06-2009, 07:47 AM	#46
A7XT Member Joined: May 2009, #16656 Location: WYOMING Age: 18 Gender: Male Posts: 40 '09 TRD Sport V6 Silver 2009 Double Cab Automatic 4.0 Modded Westin Bullbar, foglight and DRL mods, hella 500, diff-breather, aux backup lights, blacked badges	I use 87 because I am broke after buying this truck and its also getting me 18 mpg so im happy __________________ '09 TRD Sport Silver V6

07-07-2009, 06:50 PM	#48
carmellocafe Begin With The End In Mind. Name: KEVIN Joined: May 2009, #17267 Location: N. California Age: 35 Gender: Male Posts: 1,202 06 Prerunner Access cab longbed 2006 Access Cab Automatic 4.0 V6 AFE Dry Pro filter Flowmaster muffler E-Z clamp tailgate mod.	I've tried 87, 89, & 91. 87 definitely rendered the best MPG for me. Didn't see even the slightest difference in performance from higher octane. I'll be sticking with 87. __________________

07-07-2009, 09:47 PM	#49
thebigk Why did I leave Cancun?!?!??!? Name: My name is Ken..and I'm an alcoholic Joined: Aug 2008, #8770 Location: Carlsbad.....no not California Age: 34 Gender: Male Posts: 2,055 08 Speedway Blue DC TRD Off Road 4x4 2008 Double Cab Automatic 6cyl	86.....it's "regular" gas here. __________________ Just when I think you've said the stupidest thing ever, you keep talking. - Hank Hill TOYS 2008 Tacoma DC 4x4 TRD Offroad 2007 Kawaskai Brute Force 650i 4x4 2005 Suzuki Quadsport LT80 2004 Honda Shadow Sabre 1100

07-09-2009, 09:21 AM	#50
Veccster eatin' bass turds Name: Eric Joined: Aug 2008, #8407 Location: Pittsburgh - The City of Champions Age: 30 Gender: Male Posts: 1,644 2009 DC V6 TRDsport 2009 Double Cab Automatic 4.0l V6 Skid plate, ss exhaust tip, tube steps, Access roll-up tonneau cover, Redline hood struts, 6 D-rings, seat MagLite, LED dome, fumoto oil drain, DTRL, fog light anytime, Kenwood/Clarion speakers, Pop-N-Lock 5300, LED bed lights and a few other things...	I use BP 93 or Shell V-Power (93) and am getting about 1.5mpg better than when I used 87. I have been tracking this for the last 7 tanks. It varies but this is an average increase. I also experienced a noticeable increase in throttle response. I like to get going quick after stops and I noticed a performance increase when I started using 93. I would use 91 but we only have 93 around here. __________________ Lets go Steelers Lets go Pens

07-09-2009, 09:39 AM	#51
Dilsky There go my nipples again! Name: Shawn Joined: Oct 2008, #10036 Location: Edmonton AB Gender: Male Posts: 476 07 TRD Sport 2007 Double Cab Automatic 4.0 L 3" Revtech lift, Agri-Cover Larado soft top, Pop'n Lock, 48" Hi-Lift Jack, 20" Incubus Offroad rims	Shell V-power FTW. I am a huge fan of air miles though haha...... __________________

07-09-2009, 03:13 PM	#52
RckyMntns Junior Member Joined: May 2009, #17080 Location: Utah Gender: Male Posts: 23 '07 DC Silver OR 2007 Double Cab Automatic	I use 85 and get 20 mpg with Mud-Terrian tires and 3 inch lift.

07-09-2009, 03:18 PM	#53
jtav2002 I'm a mouth full of awesome Name: Josh Joined: Jun 2009, #19074 Location: Reading, PA Age: 25 Gender: Male Posts: 353 2009 Magnetic Gray TRD Sport access cab 4x4 2009 Access Cab Automatic 4.0L Weathertech all weather floor mats, Weathertech side window deflectors, fog light mod, OEM bed divider, Toyota XM reciever, mini maglite mount in center console, Advantage Torzatop tri-fold tonneau, black Aries bull bar, JL Audio W3v3 8" with Alpine amp.	Unless you're tuning for higher octane gas it's kind of a waste of money to put in anything higher than recommended. 87 is recommended so that's what the engine is going to know how to run best on. It's really not going to know what to do with the higher octane.

07-09-2009, 03:30 PM	#55
jtav2002 I'm a mouth full of awesome Name: Josh Joined: Jun 2009, #19074 Location: Reading, PA Age: 25 Gender: Male Posts: 353 2009 Magnetic Gray TRD Sport access cab 4x4 2009 Access Cab Automatic 4.0L Weathertech all weather floor mats, Weathertech side window deflectors, fog light mod, OEM bed divider, Toyota XM reciever, mini maglite mount in center console, Advantage Torzatop tri-fold tonneau, black Aries bull bar, JL Audio W3v3 8" with Alpine amp.	Gotcha. I'll read once I take delivery haha. But generally speaking with the vehicles I've had experience with you'll gain nothing from going higher than the recommended fuel if you're not tuned for that.

07-09-2009, 05:41 PM	#58
Kidd Mr. Aloha Joined: May 2009, #17250 Location: Hawaii Gender: Male Posts: 145 2K9 Tacoma TRD Sport DC 2009 Double Cab Automatic 4.0L V6	3rd fill done today and it was 92 oct....

07-09-2009, 11:05 PM	#60
DdayIsNear Im an individual like everyone else Name: Crazy Eddie Joined: Jun 2009, #18432 Location: North West Jersey Age: 30 Gender: Guy Posts: 1,344 V6 SR5 TRD Sport 2007 Double Cab Manual V6 AVS Window Visor, Factory Tow Package, TACOMAWORLD.COM Sticker, Blue Interior Dome Light Condom, Grillecraft Black MeshGrill, Devil Horns Toyota Logo	what i dotn get is how can it be tuned for 91, if some states do not even pump 91 due to elevation....is there hard evidence to prove this...a document or something....i would like to see it....hopefully it exists __________________ 2007 Silver Tacoma V6 SR5 TRD<>Manual Trans<>Tow Package<>TACOMA WORLD STICKER<>Blue Dome Light<>Devils Horns Emblem<>Grillecraft Black Mesh Grille<>Summit Racing Bed Mat<> 2007 Kawasaki Ninja 650r

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