What is 87+ meaning ... ?

[DashSTI]

How eco friendly Dark Horse is

Question.
87+ means we are able to pick whichever available on our gas budget, aren't we ?

I have no concern to keep >91, but I'd like to know what Ford is meaning, since this is my 1st ever Ford product.

BTW, it seems my town bayarea in CA is higher living cost (gas price) than others

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[dfwford]

How eco friendly Dark Horse is

Question.
87+ means we are able to pick whichever available on our gas budget, aren't we ?

I have no concern to keep >91, but I'd like to know what Ford is meaning, since this is my 1st ever Ford product.

BTW, it seems my town bayarea in CA is higher living cost (gas price) than others

It means exactly what it says.

You can put 87 gas in your car and it will run just fine. But for maximum performance, premium gas is better.

 

[dfwford]

BTW, as a bit of a life hack (for those who don't know), you can get considerably cheaper premium gas from Sam's Club and Costco...

 

[Zig]

BTW, as a bit of a life hack (for those who don't know), you can get considerably cheaper premium gas from Sam's Club and Costco...

Or even in some states without wells of their own.

 

[Chadillac]

If it’s like my 2020 5.0 it’ll run like crap on 87… mine pings like crazy on anything less than high test.

 

[SAL-E]

BTW, as a bit of a life hack (for those who don't know), you can get considerably cheaper premium gas from Sam's Club and Costco...

Sam's is not top tier gas... Costco is. Keep that in mind for those like me that insist on using top tier fuels to keep things clean.

 

[Dena]

If it’s like my 2020 5.0 it’ll run like crap on 87… mine pings like crazy on anything less than high test.

A mild ping is acceptable but if it's anything more than that, you may have a bad knock sensor. You really can't go by my hearing because I was born with poor hearing so it's not likely I would hear the mild ping however I have hear the loud pinging.

 

[IFFV68]

If it’s like my 2020 5.0 it’ll run like crap on 87… mine pings like crazy on anything less than high test.

Using 91- 93 is the best way to get PERFORMANCE.
You can Pay now or Pay later.
Either way you will PAY

 

[roadpilot]

Using 91- 93 is the best way to get PERFORMANCE.
You can Pay now or Pay later.
Either way you will PAY

As long as the engine isn't knocking and pinging, the only price to pay for using lower octane fuel is performance. You're not damaging it.

That said, I'll always run 93. It's $1.01 more per gallon @ Costco right now, but that's a choice I make.

 

[JAL]

I just drove a 1000 mile trip for the world record Mustang convoy on 87 last weekend. It ran fine. I fill up with 91 or 94 when I go to the track or plan on doing more spirited driving.
My S650 runs better on 87 than my 2019 GT did. But my 2019 was dyno tuned.

 

[Magic88]

I just drove a 1000 mile trip for the world record Mustang convoy on 87 last weekend. It ran fine. I fill up with 91 or 94 when I go to the track or plan on doing more spirited driving.
My S650 runs better on 87 than my 2019 GT did. But my 2019 was dyno tuned.

What was your MPG? Flipping back and forth between grades, does one get better than the other?

 

[Eurasianman]

Straight from the owner's manual.

For me personally, I'll run 93, especially during the summer. Winter... we'll see *shrugs*

 

[Skye]

For the benefit of Ecoboost owners reading this thread, I thought I'd provide an additional reference, highlighting the topic of Low Speed Pre Ignition (LSPI).

I was doing some deep dives this AM and thought I'd post a few links.

We talk about octane. I've mentioned LSPI, Low Speed Pre-Ignition previously. LSPI is where all the variables align, resulting in detonation high enough to do engine damage. Turbo (see Eco) Owners should be more attentive to the condition. And there are several things to help prevent it from occurring.

https://www.motor.com/magazine-summary/resolving-low-speed-pre-ignition/

Good fuel, not lugging the engine and downshifting before accelerating will go a long way towards preventing the condition. An additional consideration: your engine oil.

Calcium is used as a detergent additive in engine oils. Has been for a long time. But testing has since confirmed high calcium content in engine oil can promote LSPI.

https://pqia.org/2019/05/31/sn-plus-motor-oils-calcium-down-magnesium-up/

https://pqia.org/

Given the option, selecting an engine oil with a lower calcium content would be preferred. There's no one oil that's best. Like finding a brand of gas, it can be difficult from all the choices. Links above could help. Turbo and oil-specific forums could have threads on brands they choose and why.

 

[JAL]

What was your MPG? Flipping back and forth between grades, does one get better than the other?

MPG was 21. 70-75 mph cruise control for 900 miles, and stop and go plus slow speeds for the 100 mile convoy portion of the trip. Flat roads.

This is similar to the MPG I get from the 94 octane fuel I used for the first 700 miles since I bought the car.

Like with my s550 I get similar gas mileage on 87 and 94. I did not hear pinging with my S650 on 87, but there were no hard accelerations/under load situations.

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