Sponsored

Seeking Octane Advice

DatAsuna

New Member
Joined
Jun 15, 2020
Threads
1
Messages
1
Reaction score
0
Location
Columbus, MS
Vehicle(s)
'19 Bullitt
First post, howdy everyone! I'm the 2nd owner of a seemingly bone-stock Bullitt with 9k miles.

So the owners manual clearly designates 87 octane as a minimum requirement for the '19 Mustang Bullitt

However,

- The dealer I purchased it from said to use mid-grade for cleaner/better-quality gas
- At least one article online says that you will not hit advertised power/torque unless you run 93 Octane.

What do you run in your Bullitt and why? This is my daily driver, so I want to hit a balance of economy and proper maintenance, thanks!
Sponsored

 

Tukman

Well-Known Member
Joined
Apr 14, 2019
Threads
1
Messages
69
Reaction score
187
Location
Mission BC Canada
First Name
Pete
Vehicle(s)
2020 pp2 Roush stage 2 Mustang GT/ 2019 Bullitt
First post, howdy everyone! I'm the 2nd owner of a seemingly bone-stock Bullitt with 9k miles.

So the owners manual clearly designates 87 octane as a minimum requirement for the '19 Mustang Bullitt

However,

- The dealer I purchased it from said to use mid-grade for cleaner/better-quality gas
- At least one article online says that you will not hit advertised power/torque unless you run 93 Octane.

What do you run in your Bullitt and why? This is my daily driver, so I want to hit a balance of economy and proper maintenance, thanks!
I use 94 octane here in Canada, it burns cleaner and cooler and hits the power/torque specs for the stock Bullitt. Itā€™s not my daily driver though,I have a 2017 GT for that
 

Elp_jc

Well-Known Member
Joined
May 2, 2020
Threads
48
Messages
3,531
Reaction score
795
Location
USA
Vehicle(s)
None
I'm using premium now, but if gas keeps going up, might have to rethink that. Ha ha. I have to pay a whopping $0.60/gal extra for premium here, and it's only 91. I thought maybe the 2.xK rpm rattle was pinging due to regular gas, but it's not. Engine might function fine with regular, but I'm sure the engine likes premium much better. Will keep an eye on this thread and see what others say :).
 

POJ 1

Well-Known Member
Joined
Mar 19, 2015
Threads
3
Messages
882
Reaction score
408
Location
Auckland New Zealand
First Name
Phil
Vehicle(s)
2019 Bullitt build no.301
only 98
 

Zooks527

Well-Known Member
Joined
Aug 24, 2018
Threads
67
Messages
1,669
Reaction score
1,318
Location
02048
Vehicle(s)
2019 KB GT, 401A, 6MT, PP1, S&S, MR, AE, B&O / 2005 Toyota Tacoma
As you're Down Under, your 98 is akin to 93 in the US.

The engine will run acceptably on 87, but it will pull the timing back to avoid knocking and you won't see the power that you would with a higher octane. Personally, I use 93, which is not available everywhere in the US.
 

Sponsored

Louk

Well-Known Member
Joined
Nov 26, 2018
Threads
44
Messages
625
Reaction score
412
Location
America
First Name
Lou
Vehicle(s)
F90 M5, 2022 TRX
I have seen this discussion on many boards and it seems it always comes to this answer, why pay a premium price for a vehicle to only use the cheaper gas. get a Costco or sams club membership and premium is closer to .2 or ,3 of what regular is. if you drive 12,000 miles a year and avg about 20 mpg and premium is .20 cents more expensive then its a whooping 120 bucks more for the whole year. even at .60 cents more its 360 for the year. for me that's a cheap piece of mind that the vehicle is running on the octane it was designed for not the one "it can" run on.
 

GRNMSTA

Well-Known Member
Joined
Feb 27, 2020
Threads
3
Messages
89
Reaction score
47
Location
NJ
Vehicle(s)
2020 Mustang Bullitt
I have seen this discussion on many boards and it seems it always comes to this answer, why pay a premium price for a vehicle to only use the cheaper gas. get a Costco or sams club membership and premium is closer to .2 or ,3 of what regular is. if you drive 12,000 miles a year and avg about 20 mpg and premium is .20 cents more expensive then its a whooping 120 bucks more for the whole year. even at .60 cents more its 360 for the year. for me that's a cheap piece of mind that the vehicle is running on the octane it was designed for not the one "it can" run on.
First, logical, math-based explanation Iā€™ve ever heard on this topic and Iā€™m shaking my head that I never thought of it this way. Yes, enjoying my Bullitt to its fullest potential is most certainly worth the extra $100-$300/year. Even at the high end, thatā€™s like 0.66% of the cost of the car. Sheā€™s certainly worth that ā€œtipā€ based on the great service she provides. :like:

Case closed.
 

Usmc341

Well-Known Member
Joined
Apr 9, 2020
Threads
7
Messages
114
Reaction score
47
Location
Henderson, NV
First Name
Joe
Vehicle(s)
2020 Bullit
I run 91 because that's the highest available here in Nevada. I know what the manual says but you really don't want to run 87 in a 12:1 compression ratio engine. it will pull timing big time and you will notice the difference.
 

BrettT

Well-Known Member
Joined
Apr 20, 2018
Threads
24
Messages
782
Reaction score
577
Location
Richmond, BC
First Name
Brett
Vehicle(s)
2019 Bullitt, 2006 Jetta 2.0T, 2013 Escape SEL
I can somewhat understand people who DD their car putting in the cheaper gas to save money, but why buy a performance car and then not want all of the performance. I put 91 in my 2.0 Escape because I want all the HP, so for my Bullitt, it's 94 here in Canada.
 

Shibaman

Well-Known Member
Joined
Jul 17, 2015
Threads
12
Messages
73
Reaction score
199
Location
Elk Grove ca
Vehicle(s)
2019 Bullitt. BAD GRN
I can somewhat understand people who DD their car putting in the cheaper gas to save money, but why buy a performance car and then not want all of the performance. I put 91 in my 2.0 Escape because I want all the HP, so for my Bullitt, it's 94 here in Canada.
Wish we had 94 for here in california. I dont get people who want to put low octane gas in a motor that needs hight octane to make the power
 

Sponsored

jwt

Well-Known Member
Joined
May 26, 2020
Threads
15
Messages
318
Reaction score
304
Location
Alberta
First Name
John
Vehicle(s)
2019 Ford Mustang Bullitt
I only use artisanal hand crafted fuel made by local monks who meticulously crack the hydrocarbons and carefully select only the finest droplets of fuel, inspecting each one individually for clarity, odor, taste before packaging the fuel with a secret recipe of additives rumored to include virgins tears for maximum top end lubrication. The fuel is transported in hand crafted casks, each one individually numbered with a certificate of authenticity, inside of which the dirty nasty ordinary air is removed and replaced with pure nitrogen that has been filtered through a filter woven from unicorn hair to ensure the product reaches you as God intended.


I would agree with most that for the couple hundred bucks a year extra whats the harm and if you can't or won't pay the extra then no harm in using 87, the car won't explode, it'll still be fully warrantied and you will still have fun. Lets face it, how often will the extra HP really make the difference in normal driving. If you are racing or having fun with mates you'll spend far more in lost economy red lining it in every gear than 87 v 93 will ever cost you.

But for me knowing that if I do bury my foot and I am wanting everything the engine can give ( at any time - commuting, red light racing, doing pulls down the highway or just because), then the price difference is negligible versus my total cost of ownership, so what the hell, you only live once.
 

DRB

Well-Known Member
Joined
Jun 1, 2018
Threads
4
Messages
448
Reaction score
447
Location
Potomac, Maryland
Vehicle(s)
2020 5.0 Performance Pack convertible, Rapid Red
I run 93. Gasoline is so much cheaper here in the last six months, since well before the pandemic, that I'm paying less to fill up my tank than I paid to put 87 in my V6 in 2012.
 

SD-Harley

Member
Joined
May 23, 2020
Threads
2
Messages
22
Reaction score
6
Location
San Diego
Vehicle(s)
2019 Bullitt K6752
I run 91 since that is the highest I can get here in California. Right now cost isn't a factor since gas prices have dropped so much but my plan is to keep it on 91 for the foreseeable future.
 

OldPhart

Well-Known Member
Joined
Nov 20, 2018
Threads
44
Messages
424
Reaction score
801
Location
Rochester, NY area
First Name
Bruce
Vehicle(s)
ā€˜05 GMC P/U, ā€˜17 Impala, 19 Bullitt
First post, howdy everyone! I'm the 2nd owner of a seemingly bone-stock Bullitt with 9k miles.

So the owners manual clearly designates 87 octane as a minimum requirement for the '19 Mustang Bullitt
6
First, logical, math-based explanation Iā€™ve ever heard on this topic and Iā€™m shaking my head that I never thought of it this way. Yes, enjoying my Bullitt to its fullest potential is most certainly worth the extra $100-$300/year. Even at the high end, thatā€™s like 0.66% of the cost of the car. Sheā€™s certainly worth that ā€œtipā€ based on the great service she provides. :like:

Case closed.
However,

- The dealer I purchased it from said to use mid-grade for cleaner/better-quality gas
- At least one article online says that you will not hit advertised power/torque unless you run 93 Octane.

What do you run in your Bullitt and why? This is my daily driver, so I want to hit a balance of economy and proper maintenance, thanks!
Hi - If you don't drive your car in the winter, take it off the road and drop all insurance except comprehensive. That will save a few hundred $s and will pay for a good portion your gas costs for the driving season... Bruce
 

Bullitt69

Well-Known Member
Joined
Apr 3, 2020
Threads
5
Messages
76
Reaction score
36
Location
Grand Marais, MI
First Name
Steve
Vehicle(s)
2019 Mustang Bullitt TT
I only use artisanal hand crafted fuel made by local monks who meticulously crack the hydrocarbons and carefully select only the finest droplets of fuel, inspecting each one individually for clarity, odor, taste before packaging the fuel with a secret recipe of additives rumored to include virgins tears for maximum top end lubrication. The fuel is transported in hand crafted casks, each one individually numbered with a certificate of authenticity, inside of which the dirty nasty ordinary air is removed and replaced with pure nitrogen that has been filtered through a filter woven from unicorn hair to ensure the product reaches you as God intended.
:crackup:
Sponsored

 
 




Top