Fuel grade required for the 2nd gen

I put what we call Super (RON 98) in Dubai, in my 6.2. Do I get 10 more HP?

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Just got my 2017 Raptor and was wondering what the best return on investment (ROI) in fuel use would be. From what I read so far, this thread has the 87 as the minimum octane to drive the gen2 raptor with no bad side effects. If you want performance then you should run 91 octane.

So of course depending on what your individual ROI is that will of course determine what your fuel choice will be.

I believe these are the facts I have read in this thread, but some have argued that 87 will damage the Gen2 raptor and some have argued that 91 octane is a waste of money. I can see the waste of money idea has some merit for those not needing performance on a daily basis, but could someone show me the evidence that 87 octane will damage the gen2 raptor?

Thank you for the advice.

FYI- I have a 2015 Z/28 for the track. The 2017 Raptor is just for looks (and yes I like to go fast so I will most likely be using the 91 octane) and hauling stuff to the dump.

You have it correct.

Bull65 said:

Just got my 2017 Raptor and was wondering what the best return on investment (ROI) in fuel use would be. From what I read so far, this thread has the 87 as the minimum octane to drive the gen2 raptor with no bad side effects. If you want performance then you should run 91 octane.

So of course depending on what your individual ROI is that will of course determine what your fuel choice will be.

I believe these are the facts I have read in this thread, but some have argued that 87 will damage the Gen2 raptor and some have argued that 91 octane is a waste of money. I can see the waste of money idea has some merit for those not needing performance on a daily basis, but could someone show me the evidence that 87 octane will damage the gen2 raptor?

Thank you for the advice.

FYI- I have a 2015 Z/28 for the track. The 2017 Raptor is just for looks (and yes I like to go fast so I will most likely be using the 91 octane) and hauling stuff to the dump.

Click to expand...

87 won't damage truck, it is smart enough to change to tune for lower octane. But you lose about 10% power and get 5% worse MPG with 87.

I've been running 91 on my truck since getting it new, currently 2000km, and I average 13.8/100km with light foot, haven't really driven it hard yet

Hmm, I'd just like to post this: When I first got my truck, I ran premium gas for the first couple of tanks. One of the tasks my truck needs to do is tow a heavy load. I used a weight-distributing hitch and towed an 11,500lb load (heavy tractor on heavy-duty equipment hauler trailer). Yes, I realize the max towing capacity is 8k lbs with the W/D hitch. Nevertheless, between the W/D hitch and being able to position the load as far back as I could, I was able to get the truck sitting pretty much level.

I tow this load about 10x per year, only about 10 miles each time. One of the places I tow it to is at the top of a mile-long steep hill with a 50mph speed limit and dual uphill travel lanes. With premium in the tank, the truck pulled the load up the hill well. I was at 5k RPM and the truck was able to gradually increase speed.

Fast forward to a week ago; I needed to pull the same load up the same hill. This time, surprise, surprise. With the pedal to the floor, I could not exceed 50mph. What was the difference? I was running 87, and had run a couple of tanks through.

In both cases, the truck smelled hot although all temp readouts were very good. All fans were running. I left the truck idling while I unchained and unloaded my equipment.

So, during extremely heavy towing (for this truck) I believe the higher octane is important. This is a time where the truck will indeed see sustained high RPM, and the difference was noticeable. This summer, I was pulling the same load with my 2017 Super Duty dually diesel, which was effortless. The EcoBoost does not begin to move this load with the authority of the diesel, especially at low RPM. You can really feel the engine work, despite more horsepower than the current Ford diesel and nearly as much torque as a diesel of just 11 years ago.