My sister put regular gas in my frs! - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

EightSix93 · 01-07-2015, 07:54 PM

So I left my sister borrow my car for a couple hours and she told me she's full my tank up and she did. But she put regular gas in my baby 😣😣😣 I'm sure one time won't hurt it. But what's the affects of using regular gas instead of premium?

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swarb · 01-07-2015, 07:57 PM

car will make less power. just don't rev high or put heavy load and you will be fine. you can put a bottle or two of octane booster if that makes you feel any better, but really, don't worry and drive slowly for a few days.

btw, what is "regular"? in cali we have 87/89/91

EightSix93 · 01-07-2015, 08:01 PM

Regular is the 87 over there. We also have 87/89/91. I'll TRY to keep the speed low lol. It will never happen again doee

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Decay107 · 01-07-2015, 08:23 PM

You'll be fine, the engine will probably knock a bit but the computer will be able to sort things out for the most part. Just try to keep engine loads low.

Keep in mind that quite a few dealerships fill all the cars on the lot with regular.

hmong337 · 01-07-2015, 08:26 PM

Best to stick a bunch of octane boosters in there and keep the revs very low. Like 3000rpm. If you are able to drain it, that is your sure bet.

Wise · 01-07-2015, 08:29 PM

Buy her a siphon hose and tell her to get to work.

2much · 01-07-2015, 08:31 PM

one of the reasons I drive MT

FRSBRZGT86FAN · 01-07-2015, 08:34 PM

It will knock but not detrimentally to the engine that's what the knock sensors job is detect that knock and adjust the air fuel ratio and other variables to match. Octane boosters are a waste of money on these engines it's not a friggin lawn mower the best thing you can do is wait till less than a quarter tank of gas fill up with the highest octane and go back to normal. So to answer your question you'll notice a drop in power and maybe some knock/ping.

youcantseeme24 · 01-07-2015, 08:34 PM

dont buy octane boost it does nothing. Just drive it easy for half the tank then fill with 93.

wparsons · 01-07-2015, 08:54 PM

I'd aim to keep the revs in the 3000-4000rpm range, keeping it too low will load it up A LOT and put it in a big knock prone area of the rev range.

Just keep throttle input light and you'll be fine.

Even if you go ripping around it won't damage it, but you'll definitely be losing power and getting some knock.

EightSix93 · 01-07-2015, 09:11 PM

What would happen if I just went ham with regular? Just asking. Lol

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FRSBRZGT86FAN · 01-07-2015, 09:13 PM

Quote:

Originally Posted by EightSix93

What would happen if I just went ham with regular? Just asking. Lol

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Nothing its a modern car with a knock sensor you'd just notice a bit of sluggishness and pinging/knock

EightSix93 · 01-07-2015, 09:14 PM

Yea I figured. Thanks people's!

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FirestormFRS · 01-07-2015, 09:47 PM

Never let your sister drive your car...I thought everyone knew that!

01-07-2015, 07:54 PM	#1
EightSix93 Member Join Date: Jan 2015 Drives: 2013 FR-S. Location: Maryland Posts: 70 Thanks: 6 Thanked 13 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	My sister put regular gas in my frs! So I left my sister borrow my car for a couple hours and she told me she's full my tank up and she did. But she put regular gas in my baby 😣😣😣 I'm sure one time won't hurt it. But what's the affects of using regular gas instead of premium? Sent from my iPhone using Tapatalk

01-07-2015, 08:23 PM	#4
Decay107 Turning is for Nerds Join Date: Aug 2013 Drives: 35 characters is not enough Location: PDX Posts: 1,974 Thanks: 836 Thanked 1,259 Times in 717 Posts Mentioned: 186 Post(s) Tagged: 3 Thread(s)	You'll be fine, the engine will probably knock a bit but the computer will be able to sort things out for the most part. Just try to keep engine loads low. Keep in mind that quite a few dealerships fill all the cars on the lot with regular. __________________ My build thread / journal / evidence for warranty claim denial Motorcycle build thread

01-07-2015, 08:26 PM	#5
hmong337 Emperor JDM Join Date: Jun 2013 Drives: '91 MR2 Gen3 3SGTE, '13 FRS Location: Onterrible, Canada Posts: 1,750 Thanks: 3,498 Thanked 909 Times in 495 Posts Mentioned: 20 Post(s) Tagged: 3 Thread(s)	Best to stick a bunch of octane boosters in there and keep the revs very low. Like 3000rpm. If you are able to drain it, that is your sure bet. __________________

01-07-2015, 08:34 PM	#8
FRSBRZGT86FAN Senior Member Join Date: Jun 2013 Drives: 2023 GR SUPRA,15 FR-S (SOLD) Location: Philadelphia, PA Posts: 4,235 Thanks: 3,086 Thanked 2,100 Times in 1,397 Posts Mentioned: 31 Post(s) Tagged: 2 Thread(s)	It will knock but not detrimentally to the engine that's what the knock sensors job is detect that knock and adjust the air fuel ratio and other variables to match. Octane boosters are a waste of money on these engines it's not a friggin lawn mower the best thing you can do is wait till less than a quarter tank of gas fill up with the highest octane and go back to normal. So to answer your question you'll notice a drop in power and maybe some knock/ping. __________________ SOLDOFT Stage 2 UEL E85/Nameless Performance 3 inch axleback with 5 inch mufflers/ TRD CAI / CNT UEL/ Cusco Strut BAR & LHD Brake Stop / "JDM" Toyota Badges / WinJet JDM headlights - DRL MOD from fteightysix.com - 5000K Diode Dynamics HID kit / Diode Dynamics LED interior Lights and sidemarker bulbs / JDM Clear Sidemarkers / Diode Dynamics LED switchbacks/ OLM LED rear turn signals / Tap Turn RelaySOLD

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01-07-2015, 07:57 PM	#2
swarb Senior Member Join Date: Sep 2014 Drives: BRZ Location: Los Angeles Posts: 3,053 Thanks: 1,773 Thanked 2,451 Times in 1,271 Posts Mentioned: 79 Post(s) Tagged: 0 Thread(s)	car will make less power. just don't rev high or put heavy load and you will be fine. you can put a bottle or two of octane booster if that makes you feel any better, but really, don't worry and drive slowly for a few days. btw, what is "regular"? in cali we have 87/89/91

01-07-2015, 08:01 PM	#3
EightSix93 Member Join Date: Jan 2015 Drives: 2013 FR-S. Location: Maryland Posts: 70 Thanks: 6 Thanked 13 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Regular is the 87 over there. We also have 87/89/91. I'll TRY to keep the speed low lol. It will never happen again doee Sent from my iPhone using Tapatalk

01-07-2015, 08:34 PM	#9
youcantseeme24 Senior Member Join Date: Aug 2012 Drives: 2013 subaru brz Location: United States Posts: 136 Thanks: 102 Thanked 42 Times in 29 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	dont buy octane boost it does nothing. Just drive it easy for half the tank then fill with 93.

01-07-2015, 09:11 PM	#11
EightSix93 Member Join Date: Jan 2015 Drives: 2013 FR-S. Location: Maryland Posts: 70 Thanks: 6 Thanked 13 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	What would happen if I just went ham with regular? Just asking. Lol Sent from my iPhone using Tapatalk

01-07-2015, 09:14 PM	#13
EightSix93 Member Join Date: Jan 2015 Drives: 2013 FR-S. Location: Maryland Posts: 70 Thanks: 6 Thanked 13 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Yea I figured. Thanks people's! Sent from my iPhone using Tapatalk

01-07-2015, 09:47 PM	#14
FirestormFRS Senior Member Join Date: Jul 2012 Drives: 2013 FR-S Location: Anytown Posts: 920 Thanks: 73 Thanked 643 Times in 302 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Never let your sister drive your car...I thought everyone knew that!

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