New Chevy2500LD CC

[cg6149]

Hello all, new member and wanted to say hello. I traded my 01 1500 ext cab Sierra this weekend and got a new 04 Silverado 2500LD CC. I am pumped.

 

Question on the 500 mile break in period. Should this be taken seriously? I am planning on driving this baby from SoCal to AZ tomorrow and certainly won't be keeping it under 55mph. I have heard people say it is important and others say drive it like you stole it. Would love to hear opinions.

 

Thanks

[seadoons]

Welcome to the board and congrats on the new truck! My understanding now is that for the break in period, the only thing you should do is vary your speed. Going over 55 is no big deal, but setting it on cruise at 70 for 4 hours straight is bad!! Vary your speed, 75, 65, 70, 60, etc. this way the motor/drivetrain gets a feel for all different speeds. Also, don't be too hard on the brakes yet, and I have also heard to not tow anything. Look in your manual - it probably says something close to what I have just said.

[gave20]

I varied my speed but after a few hundred miles I cruised at 60-70 My parents 03 honda had no break in. The best thing is to find some hilly terrain put 200 miles on those conditions should help as your speed is up but your working the engine pretty good.

[XTOAK]

I bought mine in Anchorage and made the 160 mile drive to Kenai which is through mountains and speed limits range from 35 through Sterling to 65 in the pass. All I did was keep it under 60 and varied the speed limit with NO CRUISE CONTROL. That was per Tony Chevrolet's head mechanic and the truck seems to be doing very well.

 

Your going to love this truck!!

[fakerley]

Hey cg6149, that's cool, I just traded in my 02 Trailblazer in for a 04 1500 Z-71 crew cab yesterday. I couldn't find anything in the manual about break-in so I just did what Harley Davidson said to do. (sort of) Just don't drive the same speed for a while. I drove from Michigan to Louisville Ky. today. I put on over 100 miles on it before I left and made sure I varied my speed all the way here. Went between 65 and 85 and didn't hold it at any speed very long. Dealers in Detroit say you don't have to do anything but should not be hard on the brakes right off the bat. I say it don't hurt a thing to baby it a little for a while.

 

I just love the ride and looks of mine and am glad I bought it!

 

Keep safe...........Frank

[cg6149]

thanks for the replies folks......put 580 miles on it over the weekend betwenn Orange County and Yuma, AZ and back. Varied the speed and she drove like a dream!!!!!!!!

 

Sweet truck!!!!

[JayMan]

Wel, about the only thing you're not supposed to do is heavy towing during the first 600 miles. The last thing you want to do is baby it, drive it like a little granny. Want to know the GMPP (General Motors Performance Parts) recommended break-in for their crate motors (Including Vortec truck motors)?

 

1. Run motor at 2,500 RPM for 30 minutes.

2. Change oil and filter using 10W-30, no synthetics

3. Drive at varying speeds and loads for 30 miles, no WOT

4. Run 5-6 medium throttle runs to 5000 RPM, backing off to 20 MPH

after each run

5. Run 2 WOT runs to 5000 RPM, backing off to 20 MPH after each run

6. Change oil and filter using 10W-40, no synthetics

7. Drive next 500 miles normally, without WOT, towing, hard use

8. Change oil and filter using 10W-40, you may now use synthetics

 

I special-ordered my 2000 GMC Sierra and followed most of the GMPP recomendations. I changed my oil and filter at 100 miles, again at 600 miles, and switched to Mobil 1 at 1,200 miles.

 

At 600 miles, I also changed the front gear oil, rear gear oil, ATF, and transfer oils. I did find fuzz on the 4L60E pan magnet and the rear axle cover magnet. I then started heavy towing.

 

At 1,200 miles, I serviced all the gear oils, ATF, and transfer case again. After inspecting the magnets on the pans, found a few specs. I checked the pan magnets again in 2002 and everything was spotless.

 

Hope this helps.