FR-S may be very sensitive to bad gas. - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ExWhyZer0 · 10-19-2012, 11:53 AM

I filled up with Shell 93 the other day. For some reason, when I filled up on 91 Kroger gas, it felt like my car ran better o.0

Neziah · 10-19-2012, 12:03 PM

I don't think it has anything to do with the fact the type of fuel system on the car, more that we have high compression and the ECU is going to tweak everything down to prevent detonation when you get low quality fuel.

Rayme · 10-19-2012, 12:20 PM

I've been having luck so far with the gas from Petro-Canada, I received 350 $ of gas card from my dealer so I kind have to go there…will probably still go there after just to be sure!

ScionRacer · 10-19-2012, 05:41 PM

Unfortunately sunoco stopped selling their 94 around here years ago.I can sometimes find 93 and there is always 92, but i have noticed that different tanks of fuel do have an effect on how the engine performs.

i have had good luck with Sunoco 93 and marathon 93.Sheetz,Speedway and True north/BP have had negative effects on drive ability for me.

As a rule of thumb regardless of timing,i have always went by compression ratio

naturally aspirated engines 10.5.1 up to 11.5.1 minimum 93
naturally aspirated engines 9.0.1 to 10.5.1 minimum of 91
naturally aspirated engines 7.5.1 to 8.5.1 minimum of 87

I would run nothing but 94 on my FRS if it was available around here.

WolfsFang · 10-19-2012, 05:52 PM

Running sunoco 93 and no problems.

BlaineWasHere · 10-19-2012, 07:21 PM

Direct Injection in general is very fuel sensitive. If I put shitty fuel in my MKV GTI (which was DI) it would throw a CEL.

FRiSson · 10-20-2012, 10:25 AM

Quote:

Originally Posted by ScionRacer

Unfortunately sunoco stopped selling their 94 around here years ago.I can sometimes find 93 and there is always 92, but i have noticed that different tanks of fuel do have an effect on how the engine performs.

i have had good luck with Sunoco 93 and marathon 93.Sheetz,Speedway and True north/BP have had negative effects on drive ability for me.

As a rule of thumb regardless of timing,i have always went by compression ratio

naturally aspirated engines 10.5.1 up to 11.5.1 minimum 93
naturally aspirated engines 9.0.1 to 10.5.1 minimum of 91
naturally aspirated engines 7.5.1 to 8.5.1 minimum of 87

I would run nothing but 94 on my FRS if it was available around here.

These rules are not universally applicable anymore. The wider use of direct injection along with computerized modeling of the combustion chamber has made engines far more resistant to knock. The Mazda Skyactiv is an engine with a 12:5 compression ratio that runs on regular gas.

FRiSson · 10-20-2012, 10:37 AM

Quote:

Originally Posted by ottopilot

I've been having luck so far with the gas from Petro-Canada, I received 350 $ of gas card from my dealer so I kind have to go there…will probably still go there after just to be sure!

Petro-Canada is a Top-Tier supplier.

TTGT · 10-20-2012, 11:19 AM

All gasoline is produced to same standards and is no different for station to station. I work at a refinery trust me.

DeeezNuuuts83 · 10-20-2012, 11:44 AM

If your area has nice cars, see if you can notice a trend of them being at certain stations. For example, the one I go to will usually have a Ferrari, Lamborghini, Porsche, Lotus, etc. there every other time I fill up. That is typically a good sign, especially if they're gear heads (which you can find out if you strike up a conversation with them).

Nevermore · 10-20-2012, 11:52 AM

Quote:

Originally Posted by TTGT

All gasoline is produced to same standards and is no different for station to station. I work at a refinery trust me.

But don't the individual gas stations place their own additives and detergents to the gas? Shell will tell you in their commercials that they have better gas because of what they've added to it.

TTGT · 10-20-2012, 01:19 PM

They all have their own additives that the truckers add to fuel gas mix when loading trucks, but they are all basically the same detregents. we supply shell,and a bunch of others.. cant remember off top of head. I think it is crazy for them to advertise gas is better from on place to another after seeing the process first hand.lol

TTGT · 10-20-2012, 01:20 PM

Dont get me wrong not saying every gas station is equal, cause they are not. but the gas they are sold is all the same.

Lee358 · 10-20-2012, 02:32 PM

Quote:

Originally Posted by TTGT

All gasoline is produced to same standards and is no different for station to station. I work at a refinery trust me.

So is the cash only gas station in the less wealthy part of town that has pretty cheap gas the same as the exon on the local highway?

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10-19-2012, 05:52 PM	#19
WolfsFang Scrape Master Join Date: Jun 2012 Drives: Goal: Oldest FRS State Side Location: North NJ Posts: 1,161 Thanks: 238 Thanked 412 Times in 238 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	Running sunoco 93 and no problems. __________________ You do realize comparing the BRZ to the FR-S is like comparing which hand you love masterbating too right?

10-19-2012, 07:21 PM	#20
BlaineWasHere Grip>Drift Join Date: Jun 2012 Drives: FRS Location: NorCal Posts: 3,472 Thanks: 782 Thanked 1,749 Times in 918 Posts Mentioned: 53 Post(s) Tagged: 2 Thread(s)	Direct Injection in general is very fuel sensitive. If I put shitty fuel in my MKV GTI (which was DI) it would throw a CEL. __________________ My FR-S Build Thread!

10-19-2012, 11:53 AM	#15
ExWhyZer0 Senior Member Join Date: Sep 2012 Drives: Whiteout FR-S M/T Location: Georgia Posts: 197 Thanks: 136 Thanked 97 Times in 36 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I filled up with Shell 93 the other day. For some reason, when I filled up on 91 Kroger gas, it felt like my car ran better o.0

10-19-2012, 12:20 PM	#17
Rayme The Answer Join Date: Sep 2012 Drives: Mazda 2 Location: Moncton, NB Posts: 1,233 Thanks: 488 Thanked 661 Times in 315 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	I've been having luck so far with the gas from Petro-Canada, I received 350 $ of gas card from my dealer so I kind have to go there…will probably still go there after just to be sure!

10-19-2012, 05:41 PM	#18
ScionRacer Member Join Date: Oct 2012 Drives: 2013 Scion FR-S Ultramarine Location: Ohio Posts: 75 Thanks: 8 Thanked 26 Times in 18 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Unfortunately sunoco stopped selling their 94 around here years ago.I can sometimes find 93 and there is always 92, but i have noticed that different tanks of fuel do have an effect on how the engine performs. i have had good luck with Sunoco 93 and marathon 93.Sheetz,Speedway and True north/BP have had negative effects on drive ability for me. As a rule of thumb regardless of timing,i have always went by compression ratio naturally aspirated engines 10.5.1 up to 11.5.1 minimum 93 naturally aspirated engines 9.0.1 to 10.5.1 minimum of 91 naturally aspirated engines 7.5.1 to 8.5.1 minimum of 87 I would run nothing but 94 on my FRS if it was available around here.

10-20-2012, 11:19 AM	#23
TTGT Member Join Date: Oct 2012 Drives: 2013 Whiteout FRS Location: Roswell NM Posts: 44 Thanks: 11 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	All gasoline is produced to same standards and is no different for station to station. I work at a refinery trust me.

10-20-2012, 11:44 AM	#24
DeeezNuuuts83 Senior Member Join Date: Apr 2012 Drives: 2006 Evo IX SE Location: Southern California Posts: 997 Thanks: 115 Thanked 254 Times in 170 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	If your area has nice cars, see if you can notice a trend of them being at certain stations. For example, the one I go to will usually have a Ferrari, Lamborghini, Porsche, Lotus, etc. there every other time I fill up. That is typically a good sign, especially if they're gear heads (which you can find out if you strike up a conversation with them).

10-20-2012, 01:19 PM	#26
TTGT Member Join Date: Oct 2012 Drives: 2013 Whiteout FRS Location: Roswell NM Posts: 44 Thanks: 11 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	They all have their own additives that the truckers add to fuel gas mix when loading trucks, but they are all basically the same detregents. we supply shell,and a bunch of others.. cant remember off top of head. I think it is crazy for them to advertise gas is better from on place to another after seeing the process first hand.lol

10-20-2012, 01:20 PM	#27
TTGT Member Join Date: Oct 2012 Drives: 2013 Whiteout FRS Location: Roswell NM Posts: 44 Thanks: 11 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Dont get me wrong not saying every gas station is equal, cause they are not. but the gas they are sold is all the same.

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