What Octane Do You Use In Your 4.0L V6?

Burgman · 07-03-2009, 03:44 PM

87 but all the stations around here have 10% ethanol

jholland52 · 07-03-2009, 05:31 PM

i just use 87 and i have no problems.... sometimes when i have a little extra cash i will fill it up with 91.

FoxRacR17 · 07-03-2009, 05:35 PM

I have only run 91 in my truck since the day i got it. The first two fillups were with 91 chevon gas, then I switched to 91 shell and really like it so i'm only putting shell in it from here on out.

MonkeyProof · 07-03-2009, 06:01 PM

el cheapo Arco 87 octane...no problemos, knocks, or pings!

jholland52 · 07-03-2009, 06:15 PM

Quote:

Originally Posted by MonkeyProof

el cheapo Arco 87 octane...no problemos, knocks, or pings!

i've always been scared of using arco because i have know of a few people who have gotten water in the gas... I steer clear of that stuff!

Old Soul · 07-03-2009, 07:19 PM

+1 on the shell 91 octane. I have been noticing great results using it

M2M · 07-03-2009, 07:44 PM

Quote:

Originally Posted by luk8272

I do pay close attention to stations that add ethonal, and avoid them.

not a chance finding ethanol free gas in Cali.!!!
way things are going, don't be shocked if the California blends become national standard the way things are going !!

jandrews · 07-03-2009, 08:07 PM

Quote:

Originally Posted by M2M

not a chance finding ethanol free gas in Cali.!!!
way things are going, don't be shocked if the California blends become national standard the way things are going !!

Is that the way things are going?

toku58 · 07-04-2009, 12:32 AM

I don't think the Octane will make that big of a difference in MPG.

But depending on your driving style it it may help.

I started with the 93, and after a few tanks I noticed that there was a heavy smell of gas from my exhaust. So I switched down to the 91.

(The smell of gas will tell you that your engine isn't burning the fuel completely. The lower octane will help to burn the fuel better.)

Your truck has ping sensors so it will adjust the firing to accommodate the lower octane (87) But the engine won't be as efficient as it should.

The trick is to find the lowest octane that doesn't make your engine compensate.(retard the timing) That way it will run at it's best, and burn the fuel completely.

FL4x4Taco · 07-04-2009, 08:20 AM

I just got through doing my own 87 vs 93. For some reason all the stations in my area use 10% ethanol, even in 93!! Not sure about the shells, they're usually a lot more $/gal. But hess, 7-11, racetrac, mobil etc. all use 10% ethanol in all grades of fuel. So I've been running 87, tried 2 tanks of 93. No difference in MPG. I will say that maybe you get better throttled response/performance but for daily commuting 87 is fine. If I tow/haul some heavy weight I'll be using 93. So I was not able to justify the extra cost of 93 octane in my tacoma.

As for Pinging, Thats why I want a scantool so I can see ping counts and compare 87 vs 93 in more scientific light.

WilsonTheDog · 07-04-2009, 09:01 AM

93. I get 1-2 mpg better with 93 vs. 87.

StandingCow · 07-04-2009, 09:01 AM

Whatever is cheapest.

PNWIW · 07-04-2009, 10:03 AM

I recently returned from a road trip from South Dakota. Reading through some of the posts on TW, many members found that they were getting better gas mileage with high octane gas. With a 3400 mile round trip I thought I would give it a try. According to my scangauge I averaged 18.9 mpg (80-85 mph with AC on). The majority of the miles were on the freeway. I am not sure if it is better than with regular, but decent mileage. One thing I noticed was the "lod"(load on the engine) number on my scangauge. At idle it is typically 28. With the high octane fuel it was 38 to 40. The last tank of gas I went back to regular 87 and the "lod" dropped back to 28.
Why would a higher octane fuel increase the load on the engine?

dhurley · 07-04-2009, 01:08 PM

Quote:

Originally Posted by SC4333

85 octane fuel should be fine in Hoyal's situation. As altitude increases, the need for higher octane fuels to prevent detonation decreases.

I'd say at a mile high hes has nothing to worry about.

That's why 85 octane is our low grade, instead of 87.

WilsonTheDog · 07-04-2009, 01:16 PM

BTW, why do we have yet another MPG thread/poll? This horse has been dead and beaten enough on this forum. A simple search on the word "octane" brings up 111 threads.

jandrews · 07-04-2009, 01:22 PM

Quote:

Originally Posted by WilsonTheDog

BTW, why do we have yet another MPG thread/poll? This horse has been dead and beaten enough on this forum. A simple search on the word "octane" brings up 111 threads.

112 now.

But I agree with your point.

chadmb2003 · 07-04-2009, 07:43 PM

Quote:

Originally Posted by WilsonTheDog

BTW, why do we have yet another MPG thread/poll? This horse has been dead and beaten enough on this forum. A simple search on the word "octane" brings up 111 threads.

I think people like to get the results they want in an easy way. They're to lazy to search.

FoxRacR17 · 07-04-2009, 08:15 PM

ok i may of missed the bandwagon, but why does everyone have that same avatar picture??

chadmb2003 · 07-04-2009, 08:16 PM

Quote:

Originally Posted by FoxRacR17

ok i may of missed the bandwagon, but why does everyone have that same avatar picture??

http://www.tacomaworld.com/forum/off...ease-read.html

buck · 07-04-2009, 10:26 PM

Quote:

Originally Posted by rab89

What do you guys think of the new "nitrogen" gas from shell?

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

I tried 87 and 94 and didn't notice any difference in mileage/performance.

I stick to 87.

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

07-03-2009, 06:01 PM	#24
MonkeyProof noobiest noob ever Joined: Oct 2008, #9774 Location: SoCal-SGV Age: 36 Gender: Tranny Posts: 850	el cheapo Arco 87 octane...no problemos, knocks, or pings! __________________ www.SiRMarlon.com All-Pro LT kit, All-Pro 3" Leaf Pack, Fox Shocks, All-Pro Front/Rear Plate Style Bumpers, All-Pro Skids 35" Tires, 4.56 Gears, Locked Front/Rear, CB and 2meter Radios Kragen 7" HIDS, Smittybilt 10K Winch, Master-Pull Synthetic Winch Rope

07-04-2009, 12:32 AM	#29
toku58 Senior Member Joined: Oct 2008, #9882 Location: HAWAII Gender: Male Posts: 443 4x4 Beast! 2006 Double Cab Automatic v6 Anything and everything!	I don't think the Octane will make that big of a difference in MPG. But depending on your driving style it it may help. I started with the 93, and after a few tanks I noticed that there was a heavy smell of gas from my exhaust. So I switched down to the 91. (The smell of gas will tell you that your engine isn't burning the fuel completely. The lower octane will help to burn the fuel better.) Your truck has ping sensors so it will adjust the firing to accommodate the lower octane (87) But the engine won't be as efficient as it should. The trick is to find the lowest octane that doesn't make your engine compensate.(retard the timing) That way it will run at it's best, and burn the fuel completely. __________________ http://www.cardomain.com/ride/2435980

07-04-2009, 08:20 AM	#30
FL4x4Taco Senior Member Joined: May 2009, #17595 Gender: Male Posts: 333	I just got through doing my own 87 vs 93. For some reason all the stations in my area use 10% ethanol, even in 93!! Not sure about the shells, they're usually a lot more $/gal. But hess, 7-11, racetrac, mobil etc. all use 10% ethanol in all grades of fuel. So I've been running 87, tried 2 tanks of 93. No difference in MPG. I will say that maybe you get better throttled response/performance but for daily commuting 87 is fine. If I tow/haul some heavy weight I'll be using 93. So I was not able to justify the extra cost of 93 octane in my tacoma. As for Pinging, Thats why I want a scantool so I can see ping counts and compare 87 vs 93 in more scientific light. __________________ 2009 DC/SB SR5 4x4, 4.0, Auto, TRD Offroad. Raised Rear Diff Vent, Trailer Connector relocated to bumper, Leaf Spring TSB, Trimmed Mud flaps, Tailgate Lock Clamp, WeatherTech Floor Liners, Fog Light mod Etc.

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07-03-2009, 05:31 PM	#22
jholland52 Senior Member Joined: May 2009, #16791 Location: Bothell WA Age: 22 Gender: Male Posts: 154 09 Tacoma TRD Sport 2009 Access Cab Automatic V6 Trimmed mud flaps, blue headlights and fog lights, flowmaster muffler, K&N drop in filter.... plenty more to come!	i just use 87 and i have no problems.... sometimes when i have a little extra cash i will fill it up with 91.

07-03-2009, 05:35 PM	#23
FoxRacR17 Senior Member Name: Kevin Joined: Apr 2009, #15692 Location: SoCal Age: 23 Gender: Male Posts: 218 09 4x4 SR5 DoubleCab Short Bed 2009 Double Cab Manual 4.0L V6 Fox 2.5 C/O's, fox 2.0 rear shocks, toytec 1.5" AAL, TC UCA's, blue/white dashboard lights, seatbelt chime removed, Synthetic leather armrests, WO seat covers front and back	I have only run 91 in my truck since the day i got it. The first two fillups were with 91 chevon gas, then I switched to 91 shell and really like it so i'm only putting shell in it from here on out.

07-03-2009, 07:19 PM	#26
Old Soul Senior Member Joined: May 2009, #16995 Location: NC Gender: Male Posts: 253 09 AC V6 SR5 2WD SWB 2009 Access Cab Automatic v6 not to many, love it the way it is	+1 on the shell 91 octane. I have been noticing great results using it

07-04-2009, 09:01 AM	#31
WilsonTheDog Biggest asshole on this board Joined: Nov 2007, #3496 Location: Murrells Inlet SC Gender: Male Posts: 3,295 07 Prerunner SR5 DC/SB V6 2007 Double Cab Automatic 4.0 V6 Magnaflow 12576 muffler & chrome tip, Westin step bars, Firestone Destination A/T 265/75/16, stubbie antenna, 27% tint, Pop N Lock, AFE ProdryS, bed mat, Husky liners, D-rings added, Access Literider tonneau	93. I get 1-2 mpg better with 93 vs. 87.

07-04-2009, 09:01 AM	#32
StandingCow Senior Member Joined: Apr 2009, #16373 Location: NJ Age: 29 Gender: Male Posts: 250 09 SR5 4x4 V6 access cab tacoma 2009 Access Cab Manual V6	Whatever is cheapest.

07-04-2009, 10:03 AM	#33
PNWIW Junior Member Joined: Dec 2007, #4017 Location: Everett, WA Gender: Male Posts: 14 07 TRD Off Road 2007 Double Cab Automatic 4.0l 1" lift in rear, All pro coil overs in front.	I recently returned from a road trip from South Dakota. Reading through some of the posts on TW, many members found that they were getting better gas mileage with high octane gas. With a 3400 mile round trip I thought I would give it a try. According to my scangauge I averaged 18.9 mpg (80-85 mph with AC on). The majority of the miles were on the freeway. I am not sure if it is better than with regular, but decent mileage. One thing I noticed was the "lod"(load on the engine) number on my scangauge. At idle it is typically 28. With the high octane fuel it was 38 to 40. The last tank of gas I went back to regular 87 and the "lod" dropped back to 28. Why would a higher octane fuel increase the load on the engine?

07-04-2009, 01:16 PM	#35
WilsonTheDog Biggest asshole on this board Joined: Nov 2007, #3496 Location: Murrells Inlet SC Gender: Male Posts: 3,295 07 Prerunner SR5 DC/SB V6 2007 Double Cab Automatic 4.0 V6 Magnaflow 12576 muffler & chrome tip, Westin step bars, Firestone Destination A/T 265/75/16, stubbie antenna, 27% tint, Pop N Lock, AFE ProdryS, bed mat, Husky liners, D-rings added, Access Literider tonneau	BTW, why do we have yet another MPG thread/poll? This horse has been dead and beaten enough on this forum. A simple search on the word "octane" brings up 111 threads.

07-04-2009, 08:15 PM	#38
FoxRacR17 Senior Member Name: Kevin Joined: Apr 2009, #15692 Location: SoCal Age: 23 Gender: Male Posts: 218 09 4x4 SR5 DoubleCab Short Bed 2009 Double Cab Manual 4.0L V6 Fox 2.5 C/O's, fox 2.0 rear shocks, toytec 1.5" AAL, TC UCA's, blue/white dashboard lights, seatbelt chime removed, Synthetic leather armrests, WO seat covers front and back	ok i may of missed the bandwagon, but why does everyone have that same avatar picture??

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