Breaking in your new GT
Thread Starter
1st Gear Member
Joined: Apr 2007
Posts: 102
From: Phoenix, AZ
Breaking in your new GT
How many of you guys ran your new GT "Hard" for the first 20-100 miles or so per mototuneusa's guide? I'm curious how your gas mileage and engines are running now... any oil loss?
I'm kind of confused by the contradicting statements between the manuals saying to take it easy for the first 500 or so miles and this new theory of running it very hard for the first 20 miles. If that's the case, what if my new car has been test driven or is being driven to me from another dealership and has 40 miles on it? If this is the correct way, what do you do then?
I'm kind of confused by the contradicting statements between the manuals saying to take it easy for the first 500 or so miles and this new theory of running it very hard for the first 20 miles. If that's the case, what if my new car has been test driven or is being driven to me from another dealership and has 40 miles on it? If this is the correct way, what do you do then?
5th Gear Member
Joined: Sep 2006
Posts: 2,173
From: Orange County, CA
RE: Breaking in your new GT
+1, just drive it. People WAAAAY over think the "break in" period. you car isn't going to blow up, and if it does. you have a warranty. just don't keep it at the same speed/rpm for to long.
4th Gear Member
Joined: Dec 2006
Posts: 1,209
From:
RE: Breaking in your new GT
I think the main reason for varying the speed is so that the ECU learns varying throttle flow, so it'll adjust correctly for primarily city driving styles.
Again, I could be way off in this guess, but hey, it makes sense to me...
Again, I could be way off in this guess, but hey, it makes sense to me...
Is the tide gonna reach my chair?
Joined: Mar 2007
Posts: 4,389
From: Nor'east
RE: Breaking in your new GT
ORIGINAL: Arwing
+1, just drive it. People WAAAAY over think the "break in" period. you car isn't going to blow up, and if it does. you have a warranty. just don't keep it at the same speed/rpm for to long.
+1, just drive it. People WAAAAY over think the "break in" period. you car isn't going to blow up, and if it does. you have a warranty. just don't keep it at the same speed/rpm for to long.
Only thing I stuck to was the first 1,000 mile switch to synthetic.
5th Gear Member
Joined: Apr 2007
Posts: 3,547
From: The High Country
RE: Breaking in your new GT
ORIGINAL: Margarita Girl
Yes, don't baby it. If something is faulty, you want to know about it right away. I have 8,500 miles on my 2005 and I am still breaking it in!
Only thing I stuck to was the first 1,000 mile switch to synthetic.
ORIGINAL: Arwing
+1, just drive it. People WAAAAY over think the "break in" period. you car isn't going to blow up, and if it does. you have a warranty. just don't keep it at the same speed/rpm for to long.
+1, just drive it. People WAAAAY over think the "break in" period. you car isn't going to blow up, and if it does. you have a warranty. just don't keep it at the same speed/rpm for to long.
Only thing I stuck to was the first 1,000 mile switch to synthetic.
This thing isn't a diesel. I will break in within 3000 miles. To the OP, you need to run it HARD for the first few miles, then vary the rpm's. Get the original oil out at 500 miles and switch to synthetic.
3rd Gear Member
Joined: Jun 2006
Posts: 568
From: Texas
RE: Breaking in your new GT
From the 2006 Mustang Owners Manual
BREAKING-IN YOUR VEHICLE
Your vehicle does not need an extensive break-in. Try not to drive
continuously at the same speed for the first 1,000 miles (1,600 km) of
new vehicle operation. Vary your speed frequently in order to give the
moving parts a chance to break in.
Do not add friction modifier compounds or special break-in oils during
the first few thousand miles (kilometers) of operation, since these
additives may prevent piston ring seating. See
Engine oil in the
Maintenance and Specifications
chapter for more information on oil
usage.