Break In

[Grand Am EMT]

So, what's the rumors on proper ways to break in this engine?

[SC/T02]

New cars have a very simple break in rule. You drive it 500 miles before you begin the abuse. Don't floor it untill after 500 miles. That has become a standard. You don't have to go the same path as the older cars and Carb cars.

[Grand Am EMT]

ok. somone in the family got a durango new in 99, and it said to accelerate quickly for short periods of times, still the deal? thanks

[4kQuad]

I don't know about the exclerate, but when I had mine rebuilt he said no cruse control. For the rings to seat better you should vary the speed of the car if you get on a free way. Also keep the speed down, don't rev it when it first starts.

One of the hardest things you can do to a motor is rev it up when it first starts. The oil hasn't had a change to get through out the motor yet.

[master]

You know, the 3400 V6, when it's made at the factory it was already broken in for a couple of hundred miles before installing in the car. So you don't have to wait for very long before you push it hard.

[Cino]

Originally posted by master
You know, the 3400 V6, when it's made at the factory it was already broken in for a couple of hundred miles before installing in the car. So you don't have to wait for very long before you push it hard.

When I got my 03 last May-june, I called the dealer to have my oil changed at 500 miles.. The tech told me that they are broke-in at the factory. I still baby it till 2000miles before opening it up. At 7k I still only open it up once in awhile.

Stephen

[Colin]

Originally posted by Grand Am EMT
ok. somone in the family got a durango new in 99, and it said to accelerate quickly for short periods of times, still the deal? thanks Yes , brief acceleration contributes to the breakin . ( by loading / unloading the rings on the cylinder wall ) But varying the engine speed is perhaps the most inportant , don't drive at a constant speed for long periods of time till you get some miles on the engine .

[Grand Am EMT]

Originally posted by Cino
When I got my 03 last May-june, I called the dealer to have my oil changed at 500 miles.. The tech told me that they are broke-in at the factory. I still baby it till 2000miles before opening it up. At 7k I still only open it up once in awhile.

Stephen
7000? in 10 months? How about 5k in 3 weeks? HA i think i got all-ya-all beat!

[TheLamonizer]

lol one of my friends dads got a new 350Z and it said not to get over 2500 rpms for it was either 750 or 2500 miles...

[redlined67]

I got 10,300 in 6 months. I got ya beat there. I live in Wi. and go to school in South Il.

[Cino]

Originally posted by Grand Am EMT
7000? in 10 months? How about 5k in 3 weeks? HA i think i got all-ya-all beat!

LOL now I have 9.5k on it.

[USMCspy]

25,000 miles on my car in 9 months, and I had a 1 mile commute to work. Now that's driving dedication. The thing about reving is load. If the engine is loaded down it's hard on the engine, if there is no load everythings gravy. On manual trans (which non of us have) the best way to break in an engine is to contantly run it in a gear higher than you normally would.