87 OCTANE SINCE I BOUGHT MY TRUCK 6 MONTHS AGO!!!

[TexasReX]

ECU will adjust everything for you, hope you didn’t do much 0-60

 

[TheBoz]

I have been filing up my TRX with 87 octane since I purchased it about 6 months ago. to be frank I didn't know it REQUIRED premium gas I just though it was recommended. I don't hear any knocking or have an issues at all no lights have ever come on and I daily drive my truck. I am worried my engine has internal damage and my give me issues down the line. what do you guys recommend I do? just switch to premium gas going forward and forget about it?? thanks!

Time will tell whether you did any damage. I would switch to 91 octane gas from now on and then hope and pray.

 

[Russ103]

87 is for rental cars, not your personal $100k toy.

 

[HeliPilot]

I’ve been in places where 87 is the only option. I usually run 93. But the times I had to use 87, I made sure not to romp on it, and I added higher octane as soon as it became available. My truck has 40k miles, no signs of imminent failure.

 

[RedEyeTRX]

I don’t know what you should do, as it’s almost impossible to fix stupid. Also awesome that your going to draw your conclusion from a poll!

Everyone is thinking it, you are saying it!

 

[ParadigmDawg]

I have a question - How do you not know that a Supercharged high performance motor will need 91+ octane? That is an base assumption any logical person would make off the bat..

Let's just say if it is 400+ HP, you should run 91+...

 

[F8Demon]

Let's just say if it is 400+ HP, you should run 91+...

Has nothing to do with it, ridiculous advice.

 

[RedEyeTRX]

In the immoral words of @El Jefe ........ READ THE BOOK.......READ THE BOOK......READ THE BOOK !!!!!!!!!!!!!

 

[DIN0ZR]

Has nothing to do with it, ridiculous advice.

You're not wrong, but his advice isn't ridiculous. For most normal sized gasoline engines produced today, if it makes more than 400 horsepower then odds are it has high enough compression ratio to warrant 91+ octane, or that it has forced induction and will probably require 91 octane. I'm sure there's plenty examples to the contrary. But if you lived by his 400hp rule then you wouldn't go wrong too often, even though hp is certainly not the measure of whether something needs higher octane fuel.

 

[Torqued]

It's easy for gearheads to know that you might need 91 octane. There are others that can't change a light bulb. We all have different interests. I knew it. No need to criticize.

 

[ParadigmDawg]

Has nothing to do with it, ridiculous advice.

Don't be silly. For someone that doesn't think a 702hp engine needs higher octane, it is pretty simple standard...

 

[DIN0ZR]

WTH is this lol? How about the 392?

WTH is that? It's a rule of thumb. Just like Isaac Newton's model of gravity. It's technically wrong at the most accurate levels. It takes Einstein's relativity to give an accurate picture of gravitational motion. But you can do a lot of math with it and get answers that are as correct as you need them to be.

 

[Fifty]

WTH is that? It's a rule of thumb. Just like Isaac Newton's model of gravity. It's technically wrong at the most accurate levels. It takes Einstein's relativity to give an accurate picture of gravitational motion. But you can do a lot of math with it and get answers that are as correct as you need them to be.

Ooh. I so want to have this discussion (I studied physics after i went to work and realized a polo sci degree won’t help in racing…but all my friends are normal and have no clue what I’m talking about)

But not will it derail this thread.

End of story, put 91 oct in and buy it from a real company: not arco or other discount gas stations.

 

[El Jefe]

. . .shouldn't matter either way - just as long as your blinker fluid is past 50%.

 

[Moparornocar]

It is kind of hard to imagine nor knowing higher octane would be required, but it's okay.

OP, don't worry about it . just put in the super and drive it's fine.

 

[Fifty]

. . .shouldn't matter either way - just as long as your blinker fluid is past 50%.

Ever since you bought shares of stock in that Nigerian blinker fluid manufacturer; you push that shit as the cure for every thing…

 

[ParadigmDawg]

WTH is this lol? How about the 392?

Are you now talking engine size vs hp?

Show me a 400+ hp motor that wouldn't benefit from 91+.

 

[Dudebro]

WTH is this lol? How about the 392?

Doesn't the 392 still require 89 at least?

 

[ParadigmDawg]

Doesn't the 392 still require 89 at least?

A 392 could be built any hp you want. I would say a 200hp, 392 wouldn't need anything over the minimum octane and a 1200hp would need 100+

 

[@JC]

WTH is this lol? How about the 392?

I run 91 (non-eth) in my 392, what's the question?

*note, I didn't read any of the previous posts...