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Engine & DrivetrainDiscussions about the engine and drivetrain of your vehicle.
This is a discussion thread titled "What octane gas do you pump?", within the Engine & Drivetrain forum, part of the Technical & Vehicle Assistance Forums category.
I have had the best luck with 93 since my truck was new. the truck is consistantly stronger, and gets better gas mileage towing the trailer with 93. If I switch to 89 there is not a big change, just some pinging around 3,000 rpm. If I switch to 87 it stops pinging, but I lose power close to redline. It has been this way since new, my neighbors is the same. If I watch the spark advance through my OBD-II scanner, at part throttle acceleration around 2,800 - 3,400 rpm I am frequently a full 6 or 8 degrees sometimes 10 or 12 degrees less advanced with the lower octane gas even while it is pinging pulling the trailer.
I have found that if I am going slow on the highway without a trailer 89 works ok, but if I am pulling something at speed it is less expensive to run 93
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2000 4x4 LTD AC Sunfire Red - Sold w/ 200K
2005 4x4 LTD AC Phantom grey w/ dark grey - Sold w/ 20K
Alpine CDA-9835, W/ KCA-420i, Focal 165KP front, Focal 165V Rear speakers. powered by 2 MMats SQ2150 amps. Alpine MRD-M501 powering a JL Stealthbox with Infinity Perfect 10D VQ
Sound deadened everything with Cascade VB2HD, and Dynamat Extreme
2005 G35 Sedan 6MT - Returned due to paint work on a 'new' car.
2006 G35 Sedan 6MT - all stock. Where do I hook up the trailer and where's the bass?
I'm running Shell's 89 octane currently. I'm going back to 87 because I haven't noticed a difference in power or mpg between the two types. 93 is too much (price and additives) for my truck to handle.
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-Austin
2003 Toyota Tundra SR5 TRD Sport
I use 87 most of the time and about every 4th or 5th gas stop I'll put in some 89 or 93 (depending on how much money I have in my pocket.) Usually does fine on 87 even pulling a camper.
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1999 F150>>2000 Tundra SR5 AC>>2003 F250 CC Diesel>>Back home to 04 Tundra SR5 AC
_____________________ Mods to date: Kenwood HU & pwrd. sub/ KW spkrs X4/ KW 200W stereo amp/ undercab 55w lights/ maplights/ constant-on pwr. outlets/Flowmaster twin 40s out the rear, ss resonator tips/ KMC Enduro wheels wrapped in OEM Dunlops/ Mostly de-badged/ Clear corners/ Low-$ seat covers with TUNDRA monogram/ Griot's treatment/ Hellwig rear anti-sway/ Prodigy brake controller/ Line-X bed, bumper & door sills/ Nat. White matched BSM / JBA HEADERS BABY!!!
_____________________ Mods to come: The next impulse that doesn't exceed available cash!!!
I run 93 Chevron unoxygenated gas. I have the S/C and the OD Crank Pulley and @ 9PSI, it does not ping. I also got the Unichip and a custom tune to use the 93. So, I guess I am stuck on the 93.
SCDTRD
__________________ The Beast: 1994 Toyota Camry V6 XLE
The Mods:
Front tower Ractive Strut Bar, Whiteline rear AntiSway Bar, Rage Breaker 17.5x7 Rims and Falken Ziex 512 rubber, Limo Tint, Pioneer DEH 7700MP Head Unit, Polk 6x9 rear and Polk 6.5 Front speakers, Tokico struts front and rear, Carbon kevlar brake pads, Cryo treated rotors, ZEX 82021 N2O system, Polished and ported upper and lower intake runners, shift kit, and more to come.....and.... YES... it is a CAMRY....
I run 93 Chevron unoxygenated gas. I have the S/C and the OD Crank Pulley and @ 9PSI, it does not ping. I also got the Unichip and a custom tune to use the 93. So, I guess I am stuck on the 93.
SCDTRD
and we n/a TSer's feel just a little bit better not having to be stuck with paying for 93
__________________
-Austin
2003 Toyota Tundra SR5 TRD Sport
I run 93 Chevron unoxygenated gas. I have the S/C and the OD Crank Pulley and @ 9PSI, it does not ping. I also got the Unichip and a custom tune to use the 93. So, I guess I am stuck on the 93.
and we n/a TSer's feel just a little bit better not having to be stuck with paying for 93
Well... I don't feel bad to start with!
It was a choice and I made it. I can afford it and I use it.
SCDTRD
__________________ The Beast: 1994 Toyota Camry V6 XLE
The Mods:
Front tower Ractive Strut Bar, Whiteline rear AntiSway Bar, Rage Breaker 17.5x7 Rims and Falken Ziex 512 rubber, Limo Tint, Pioneer DEH 7700MP Head Unit, Polk 6x9 rear and Polk 6.5 Front speakers, Tokico struts front and rear, Carbon kevlar brake pads, Cryo treated rotors, ZEX 82021 N2O system, Polished and ported upper and lower intake runners, shift kit, and more to come.....and.... YES... it is a CAMRY....
I am a member of This Week in Petroleum and it lists the avg weekly $$$ by location and the formulation as well.
__________________ The Beast: 1994 Toyota Camry V6 XLE
The Mods:
Front tower Ractive Strut Bar, Whiteline rear AntiSway Bar, Rage Breaker 17.5x7 Rims and Falken Ziex 512 rubber, Limo Tint, Pioneer DEH 7700MP Head Unit, Polk 6x9 rear and Polk 6.5 Front speakers, Tokico struts front and rear, Carbon kevlar brake pads, Cryo treated rotors, ZEX 82021 N2O system, Polished and ported upper and lower intake runners, shift kit, and more to come.....and.... YES... it is a CAMRY....
I've been using 87 octane, these were the recommendations in the manual when I bought my '01 Tundra new. To date, no ping, problems. I also have been using Shell MasterCard for many years, taking advantage of the savings they offer on their card for each gallon purchased.
Dan
__________________ DAN Click on my door and see my interior. 2001 Tundra SR5 V8 Desert Sand Mica
