Gas Premium or regular?

[HyperTech]

is it true that high octane gas, degrade over the time...

i mean, can i leave my car in my garage with a full tank for 1 year, then use it the next year without problem? or i will have to add a bottle of octane booster?

[Mikem53]

Originally Posted by Ubersuber

That would of course be why two stroke engines don't need oil in their fuel.

I have a vision of Castrol engineers rubbing gasoline between their fingers and nodding sagely among themselves: "you know, this stuff would make a great lubricant, wonder why nobody else thinks so".

Don't give up your day job in hopes of getting a job as a lubricant engineer, well, automotive lubricants anyway. I can think of one line of lubricant testing where your expertise might come in handy.

That rock over there is calling out your name: "come home...come home".

You have already proven your vast knowledge to the community with your fictional posts of know-it-all drivel.
Gasoline has low lubricity and does indeed provide lubrication for the fuel system components and internal seals. Your 2 stroke analogy just shows how much you have to grasp for misinformation to prove your worthlessness. lol ! but Always good for a laugh!
I know it must be hard for you to comprehend gasoline is derived from oil..
and that you can feel its lubrication proprieties if you were smart enough to rub your fingers together and see for yourself.
Go back to your internet research so you can post more 2nd hand misinformation .

[FlamingRectumSyndrome]

Originally Posted by HyperTech

is it true that high octane gas, degrade over the time...

i mean, can i leave my car in my garage with a full tank for 1 year, then use it the next year without problem? or i will have to add a bottle of octane booster?

All gasoline degrades over time. The volatile components evaporate off, leaving a shellac-like coating on the fuel system. This clogs the metering passages in carburetors and the orifices of fuel injectors, leading to a too-lean mixture and poor running. Leave it long enough and you'll need to clean the fuel system, which can range from running a can of carburetor/injector cleaner through the system (if the vehicle will still run) to disassembling the system and soaking the components in cleaner and blowing them out.

Putting in octane booster after the fact won't help. The best thing to do if you know you will store a vehicle is to treat the gas with fuel stabilizer (Sta-Bil or similar) and fill the tank as full as it will go to avoid rusting. Once non-stabilized fuel goes bad, it is pretty much garbage-- it doesn't burn well, and it isn't good for much of anything.

[Ocala FR-S]

Originally Posted by Dragon86

Hey guys

Just to clarify something here, as we all know the engine under this car is a boxer engine, when i was ordering my FR-S, the guy said this car can run on regular gas if you wanted too.I think he was mistaken with the other Toyota cars. However the question is would you run it on regular if gas price goes sky high lol.

No, but you should.

[Ubersuber]

Originally Posted by Mikem53

You have already proven your vast knowledge to the community with your fictional posts of know-it-all drivel.
Gasoline has low lubricity and does indeed provide lubrication for the fuel system components and internal seals. Your 2 stroke analogy just shows how much you have to grasp for misinformation to prove your worthlessness. lol ! but Always good for a laugh!
I know it must be hard for you to comprehend gasoline is derived from oil..
and that you can feel its lubrication proprieties if you were smart enough to rub your fingers together and see for yourself.
Go back to your internet research so you can post more 2nd hand misinformation .

So, as I understand your "thesis" anything derived from oil makes a good lubricant?

You must then put asphalt in your sump? That's the cheapest form of product you can buy from oil refineries.

When you rub gasoline between your fingers, assuming nothing else is involved, are you aware of the carcinogenic qualities of that oil derived substance? I suggest you not do this. The one thing that should be immediately obvious even to you is that gasoline is extremely volatile. Indeed, apart from its use as motor fuel (and in its naptha form as cooking fuel) it is pretty much useless for anything except burning. In the 19 th century it was regarded as a waste product of no value, until the four stroke otto cycle engine with ignition was invented gasoline was discarded or burned as a waste product.

Are you aware of the very difficult technical problems solved by automotive engineers when applying diesel injection technology to gasoline injection (google SPICA and see what you come up with)?

Gasoline is a very powerful solvent and has very poor, even extremely poor lubrication qualities. So poor that in tank fuel pumps took a while to perfect because although gasoline is an effective coolant it is not in any sense whatsoever a lubricant. It strips any lubricants off bearings as soon as it contacts the lubricant.

As for the other posts you refer to just remember that although great minds think alike idiots almost always agree. Never argue with an idiot: he just drags you down to his level and tries to beat you with his experience. More than one idiot does not add to the total intellectual capacity of the idiots' team.

Your rock is calling out, please crawl back under it.

[Tcoat]

Uber and mikem you are BOTH a little right! The reality seems to fall someplace between your two extremes.
Took a whole 5 minutes to find! http://cdn.intechopen.com/pdfs-wm/38157.pdf

[Dipstik-sportech]

Originally Posted by Ubersuber

So, as I understand your "thesis" anything derived from oil makes a good lubricant?

You must then put asphalt in your sump? That's the cheapest form of product you can buy from oil refineries.

When you rub gasoline between your fingers, assuming nothing else is involved, are you aware of the carcinogenic qualities of that oil derived substance? I suggest you not do this. The one thing that should be immediately obvious even to you is that gasoline is extremely volatile. Indeed, apart from its use as motor fuel (and in its naptha form as cooking fuel) it is pretty much useless for anything except burning. In the 19 th century it was regarded as a waste product of no value, until the four stroke otto cycle engine with ignition was invented gasoline was discarded or burned as a waste product.

Are you aware of the very difficult technical problems solved by automotive engineers when applying diesel injection technology to gasoline injection (google SPICA and see what you come up with)?

Gasoline is a very powerful solvent and has very poor, even extremely poor lubrication qualities. So poor that in tank fuel pumps took a while to perfect because although gasoline is an effective coolant it is not in any sense whatsoever a lubricant. It strips any lubricants off bearings as soon as it contacts the lubricant.

As for the other posts you refer to just remember that although great minds think alike idiots almost always agree. Never argue with an idiot: he just drags you down to his level and tries to beat you with his experience. More than one idiot does not add to the total intellectual capacity of the idiots' team.

Your rock is calling out, please crawl back under it.

So by your own logic no one should argue with you then, because you'll just try to "beat them down"?

[CoupedUpSubie]

Gasoline in its pure form provides very very little lubrication. The same goes for any fuel that is a distillate. The lubrication comes from the sulfur in the fuel. Many older diesels require a fuel additive for the injection pumps so they don't wear out.

- an marine engineer who works with all kinds of fuels.

[Synack]

12.5:1 super high compression says premium only. Sure it will compensate if you put in 87, but when you take your car to the dealer when your engine blows and they find 87 in your fuel lines and gas tank they will leave you with the multi-thousand dollar bill.

[strat61caster]

>Thread about octane ratings
>A dozen posts arguing about the lubricity of gasoline

Welcome to ft86club!

[Neokolzia]

My question is in the winter would 87 be fine? Maybe with just a splash of octane booster, would save a fair amount of money, 1 tank free worth over a winter for sure.

[CoupedUpSubie]

Originally Posted by Neokolzia

My question is in the winter would 87 be fine? Maybe with just a splash of octane booster, would save a fair amount of money, 1 tank free worth over a winter for sure.

A tank for you is $50-60 right? Bottle of octane booster is probably $10. $40-50 savings over 5 months isn't worth putting low grade fuel in a car with a 91 octane minimum.

[Mikem53]

Originally Posted by Tcoat

Uber and mikem you are BOTH a little right! The reality seems to fall someplace between your two extremes.
Took a whole 5 minutes to find! http://cdn.intechopen.com/pdfs-wm/38157.pdf

Nobody buys gasoline to be used as a lubricant, that was not my point.. Uber-ass had to say something to look like an expert, I should have ignored it.
The fuel does indeed lubricate the fuel pump and other fuel system components.
Uber-ass suber once again has to try and impress everyone with his vast knowledge, which of course was similar to his suspension/bump stop ramblings which were all worthless bullshit, but amusing.
It's my fault for arguing with an idiot.. They will just knock you down to their level and beat you with experience.

[Ubersuber]

Originally Posted by Neokolzia

My question is in the winter would 87 be fine? Maybe with just a splash of octane booster, would save a fair amount of money, 1 tank free worth over a winter for sure.

Winter would make no real difference, the fuel responds to the combustion chamber temperature which won't change enough to affect the performance of such low octane fuel.

87 is such poor fuel it isn't sold at all in Europe or Australia NZ as far as I know. Their "regular" gas is 91 and their premium is 93 or even 94 (98 RON should be our 93 which is why the BRZ is tuned to that octane rating).

Recommended octane rating for this car is actually 93 so we North Americans are already slumming it at 91 (and we don't get 200 bhp either unless we can find 93 or 94 octane fuel).