Finally picking up new GT tomorrow

[foghat]

I should also add (highway driving or not), I'm not sure the ~800 rpm variance you'd have (~1200-2000) fully satisfies the 'do not drive continuously at the same speed' requirement when breaking in an engine. Not to mention, keeping things within an 800 to 1000 rpm range all the time is going to be somewhat difficult - or at the very least, tedious.

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[volsfan0911]

Wolf - much love, respect and gratitude. LTJG, USN (ret) myself - out on medical as well although mine was just a bad back and not combat. Made O-2 before a congenital vertebral issue put me down.

Break in for a motor is a widely contested issue. I've done it several times and had practically no oil consumption for 50K miles or more afterwards so pretty happy with my results. And I basically follow the manual along with the school of thought that your job with break-in is to seat the rings properly. No cruise control, no high rev launches, no redlining if you can help it and lots of in town driving. Get everything up to proper operating temps and then load the motor with 1/2 to 2/3 acceleration, engine braking from moderate revs, etc. Loading the rings under varying loads will encourage them to conform and seal properly to the cylinders. Hit 1,000 miles and then drive that biotch like you stole it

$0.02. Let us know how you like the sled!

 

[STAMPEDE]

The blue looks amazing in pics, would love to hear your thoughts of how it looks in person vs the pics and in different lighting, as the blue looks amazing under the Barrett Jackson lights. Thanks for your service, GO USA!

 

[e30og]

Thank you for your service!

 

[kulfyur]

For the first 1,000 miles, I plan on not keeping it at the same RPM at all, and never letting the tach get over 2,000 RPM.

So are you going to push it? My '13 v6 idles at about 1500... I don't think you'll get out of second gear with <2000. Heck you can only get to second because you'll likely be able to start in second. With that you may be able to steal 3rd. Either way you are going far anytime soon.

 

[IndustryLeech]

So are you going to push it? My '13 v6 idles at about 1500... I don't think you'll get out of second gear with <2000. Heck you can only get to second because you'll likely be able to start in second. With that you may be able to steal 3rd. Either way you are going far anytime soon.

No car should idle at 1500 RPM. You should have that looked at.

 

[aladams713]

Congrats on the new ride. Enjoy it and I am glad you are among the 1st people to get your car. Thanks for your service to our country.

+1:hail::hail::hail:

 

[StangBANG]

Thank you for your sacrifice. .enjoy your car brother!

 

[aladams713]

hello all I'm brand new hear and am finally picking up my new 2015 Deep impact Blue Mustang GT tomorrow. Just got the call from the dealership. Hopefully I'm happy woth my choice of 3.55 gears. It is the 6 speed. This will be my first new car and was wondering what your thoughts on breaking in. This car is a dream come true for me my wife ordered it for my as a surprise during my 2nd deployment. Sadly I was critically wounded and we wear not sure when I was in the hospital if I would be able to drive a manual ever again. (radial nerve damage on right arm among many other things)but thankfully I'm able to.[/QUOTE/]

Thanks for your service. Retired USN Submariner here. I had some complications associated with cancer treatment and became partially disabled. Had to switch to automatic but still enjoy driving my GT automatic. I hope you're able to enjoy whatever you're capable of driving. And again thanks for your service. :hail::hail:

 

[JimmyTwoTimes]

The two bolded statements are at odds with each other. Hope you don't plan on hitting highway speeds.

There is no reason to keep the rpm's under 2000.

They're not at all at odds with each other.

Under normal driving conditions in my V6, I almost never get above 3,000 RPM, and 99% of the time am below 2,000 RPM. I always keep the fuel-economy gauge up in the cluster, and like to keep it on full bars whenever possible -- dipping into the gas pedal drops it down, so I use a feather on the throttle at all times. It idles at about 750 or 800, and I like to let it get up into 6th gear as soon as possible, around 30 mph or whenever.

My plan for the break-in is to vary the revs between idle and 2,000 for the first thousand miles.

 

[JimmyTwoTimes]

It'd take six months to drive 1000 miles under 2000 RPM lol - max speed, 45 mph?

I don't know about the gearing in the new Mustang, but in my 2011 V6 55 mph is 1,500 rpm in 6th, and 65 is about 1,800 rpm -- I never go above 65 since I have enough points on my license that the next speeding ticket I get will be a license suspension.

 

[JimmyTwoTimes]

I wouldn't be too concerned about max speed. I suspect it is around 65-70mph in 6th (with stock 3.31s). My comment was more around, he won't be able to downshift (to change rpm). which now means you are slowing down and speeding up constantly. Annoying to everyone else on the road.

Well, I've never driven a manual before or had a car with a shiftable automatic, so it's always been speeding up and slowing down before for me. On a 55 mph highway, vary speed between 50 mph and 60 mph. Get up to 60 mph and let off the gas completely until you're down to 50 mph, then take 20 or 30 seconds to accelerate up from 50 to 60, then let off the gas until you get back down to 50, then repeat.

 

[Wolfman625]

Thank you all for all the reply's. And all the support. Am so thankful to be getting mine already. I hope you all get yours soon. But man this break in is going to be tough but worth it. Going to want to romp on it so bad. Oh well. Almost got the Orange but the blue dose look amazing in pics. Will post pics when I get the car.

Thank you all agin so much but I'm no Hero. My best friend and all the other guys I knew who didn't make it back are the real Hero's. I'm just some Infantrymen doing his job.

 

[foghat]

They're not at all at odds with each other.

Under normal driving conditions in my V6, I almost never get above 3,000 RPM, and 99% of the time am below 2,000 RPM. I always keep the fuel-economy gauge up in the cluster, and like to keep it on full bars whenever possible -- dipping into the gas pedal drops it down, so I use a feather on the throttle at all times. It idles at about 750 or 800, and I like to let it get up into 6th gear as soon as possible, around 30 mph or whenever.

My plan for the break-in is to vary the revs between idle and 2,000 for the first thousand miles.

Well, I've never driven a manual before or had a car with a shiftable automatic, so it's always been speeding up and slowing down before for me. On a 55 mph highway, vary speed between 50 mph and 60 mph. Get up to 60 mph and let off the gas completely until you're down to 50 mph, then take 20 or 30 seconds to accelerate up from 50 to 60, then let off the gas until you get back down to 50, then repeat.

The point in varying your rpm during break-in is, obviously, so you can actually break-in the moving engine parts.

I'm going to go out a limb here and say that a 1000rpm variance, especially the same (1000 to 2000) 1000 rpm variance, is not going to properly break the parts in and is not what ford had in mind when they stated this:

"Vary your speed frequently in order to give the moving parts a chance to break in."

http://www.onlymustangfords.com/coyote-engine-break-in.html

There is no need to remain below 2000rpm, and while I can't say so with any authority, I suspect it will do you more harm than good.

That said, I'd be surprised if not following the proper break-in procedure had much of a detrimental effect on the engine.

 

[Malikona]

The point in varying your rpm during break-in is, obviously, so you can actually break-in the moving engine parts.

I'm going to go out a limb here and say that a 1000rpm variance, especially the same (1000 to 2000) 1000 rpm variance, is not going to properly break the parts in and is not what ford had in mind when they stated this:

"Vary your speed frequently in order to give the moving parts a chance to break in."

http://www.onlymustangfords.com/coyote-engine-break-in.html

There is no need to remain below 2000rpm, and while I can't say so with any authority, I suspect it will do you more harm than good.

That said, I'd be surprised if not following the proper break-in procedure had much of a detrimental effect on the engine.

Keeping the car below 2000 RPM for 1000 miles seems crazy to me (I've broken in plenty of cars), but to each their own!

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