Gas question

[Blu Bug]

My raptor is a 2013 Roush SCREW and I've been advised not to run another below 91 octane and to not use any fuel additives. Last Memorial Day I ran low on gas in the truck and had used up all the twenty five gallons I brought as back up while camping out in the Nevada desert by Middlegate. The only near by gas was 87 octane so I quit driving around and just stayed in camp until it was time to go home. What would others have done and is there a safe way to use 87 octane?

 

[The Car Stereo Company]

My raptor is a 2013 Roush SCREW and I've been advised not to run another below 91 octane and to not use any fuel additives. Last Memorial Day I ran low on gas in the truck and had used up all the twenty five gallons I brought as back up while camping out in the Nevada desert by Middlegate. The only near by gas was 87 octane so I quit driving around and just stayed in camp until it was time to go home. What would others have done and is there a safe way to use 87 octane?

i have used 87 since 2013 when i bought my truck. truck was designed to use 87. you get max hp and tq when using 91but it specifically states 87 or higher. here in colorado theres 85. i think it has to do with the altitude, but i dont use it. still fill up with 87. there will no doubt be a discussion of 87vs91 gas mileage, engine knock, etc starting again with your question.

 

[P4SHOCAT]

Good question to ask Roush. They may have a different tune for 87. My 2013 will run on 87 but I always try to run 93.

 

[Canuck714]

Couple questions I would want to know first:
Are you on stock pulley with a Roush tune or are you on a JDM or 5 Star tune?
Have you changed the plugs to the colder heat range needed for a supercharged truck?
Which intercooler are you running.

From Roush these trucks come with way to much timing for forced air induction on anything less than 91. They are even more dangerously close to detonation because Roush does not take the time to go to a colder plug.

Can you run it... sure you can, but you need to stay out of the boost an no load on the engine.
My truck hated anything other than 93

 

[mprice1234]

It's not like you are putting water in the tank, running an occasional tank of 87 like when you were out of gas is going to doom your motor. Yes, best to run the 91 or higher but don't ruin a camping trip because you might need to run a few gallons of 87!

 

[Blu Bug]

Couple questions I would want to know first:
Are you on stock pulley with a Roush tune or are you on a JDM or 5 Star tune?
Have you changed the plugs to the colder heat range needed for a supercharged truck?
Which intercooler are you running.

From Roush these trucks come with way to much timing for forced air induction on anything less than 91. They are even more dangerously close to detonation because Roush does not take the time to go to a colder plug.

Can you run it... sure you can, but you need to stay out of the boost an no load on the engine.
My truck hated anything other than 93

The truck sits as I bought it earlier this year in California so I assume only a stock tune. Using the movie Two Lane Blacktop as a reference point I’m much more a James Taylor than a Dennis Wilson. I thought about pulling a spark plug but gave up the idea after I looked at the engine so pulley sizes, inner coolers etc are a struggle for me. I’m in a catch 22, not talented enough to work on my truck and too broke to have it done. I have no business owning a Raptor but I do and I don’t plan on giving it up.

 

[KOBRA2848]

I think you are asking for trouble using anything less than 93/91 octane if your Roush is supercharged. If you were in a pickle and 87 was all that was available I would definitely stay out of boost.

Mark

 

[Blu Bug]

I think you are asking for trouble using anything less than 93/91 octane if your Roush is supercharged. If you were in a pickle and 87 was all that was available I would definitely stay out of boost.

Mark

Looks like I need more gas cans.

 

[Vash]

If I was going anywhere that was likely to not have at least 91 octane available, I’d carry some octane booster such as Boostane. It’s a lot more space and weight efficient to use the octane booster mixed with available 87 octane pump gas than carrying gallons of 91+ octane fuel with you especially if it’s temporary.

 

[Bozz]

If I was going anywhere that was likely to not have at least 91 octane available, I’d carry some octane booster such as Boostane. It’s a lot more space and weight efficient to use the octane booster mixed with available 87 octane pump gas than carrying gallons of 91+ octane fuel with you especially if it’s temporary.

Yup. I carry some Sea Foam fuel treatment and some octane booster in the truck at all times.