properly breaking in engine
#2
Re: properly breaking in engine
Straight from the owner's manual:
For the first 1200 miles:
1) Avoid driving for long periods at constant speed, either fast or slow.
2) Do not run the engine over 4000 rpm
3) Do not accelerate at full throttle
4) Avoid quick starts
5) Avoid hard braking as much as possible
6) Do not tow a trailer for first 500 miles (what dumbass would attempt this anyway???)
2003.5 - G35 6spd - Diamond Graphite/Graphite leather, prem, aero package/kit
For the first 1200 miles:
1) Avoid driving for long periods at constant speed, either fast or slow.
2) Do not run the engine over 4000 rpm
3) Do not accelerate at full throttle
4) Avoid quick starts
5) Avoid hard braking as much as possible
6) Do not tow a trailer for first 500 miles (what dumbass would attempt this anyway???)
2003.5 - G35 6spd - Diamond Graphite/Graphite leather, prem, aero package/kit
#4
Re: properly breaking in engine
From the Driversedge.com, the article to which I believe you are referring:
<font color=blue>Break-in Schedule
JEFF'S NEW CAR BREAK-IN TIPS
The first 2,000 miles is the single most important period in your car's life. This is what determines if the car is a 90,000 mile car or a 190,000 mile car. Remember this! The break-in period is split into three parts.
1) For the first 1000 miles, don't run the car over 3,500 RPM, and don't depress the gas pedal more than half-way to the floor unless absolutely necessary.
***NOTE***
If you have to get onto the freeway, or you need to pass a slow moving truck, STAND ON IT. But don't make a habit of running the car hard during the first 1000 miles. Also, if your car has cruise control, don't use it during this time. You want to vary the engine speed and load as much as possible.
2) During the second interval, which is only 500 miles, you can slowly start using more and more of the engine's power.
3) The third interval is also 500 miles. During this time, use the car HARDER than you would normally. If you only drive 35MPH in the city, and after 50,000 miles move to Boulder Colorado, the car will be working harder than it ever has before, and will NOT be a happy camper! And by harder, I mean both RPM and load. Cruising along at 55MPH in third gear doesn't count! The best thing you can do is to run it full throttle 0-60, shifting above 5,000 RPM. (It is also a good idea to do this twice a month for as long as you own the car.) This keeps the soot out of the exhaust pipe, cleans the catalytic converter, and evaporates the water that is made there. If you do not do this, the exhaust system will rust from the inside out!
4) After the break-in period, you may return to your normal driving style, and the car will be prepared for any changes it might see down the road.
<font color=green>GG</font color=green>
<font color=blue>Break-in Schedule
JEFF'S NEW CAR BREAK-IN TIPS
The first 2,000 miles is the single most important period in your car's life. This is what determines if the car is a 90,000 mile car or a 190,000 mile car. Remember this! The break-in period is split into three parts.
1) For the first 1000 miles, don't run the car over 3,500 RPM, and don't depress the gas pedal more than half-way to the floor unless absolutely necessary.
***NOTE***
If you have to get onto the freeway, or you need to pass a slow moving truck, STAND ON IT. But don't make a habit of running the car hard during the first 1000 miles. Also, if your car has cruise control, don't use it during this time. You want to vary the engine speed and load as much as possible.
2) During the second interval, which is only 500 miles, you can slowly start using more and more of the engine's power.
3) The third interval is also 500 miles. During this time, use the car HARDER than you would normally. If you only drive 35MPH in the city, and after 50,000 miles move to Boulder Colorado, the car will be working harder than it ever has before, and will NOT be a happy camper! And by harder, I mean both RPM and load. Cruising along at 55MPH in third gear doesn't count! The best thing you can do is to run it full throttle 0-60, shifting above 5,000 RPM. (It is also a good idea to do this twice a month for as long as you own the car.) This keeps the soot out of the exhaust pipe, cleans the catalytic converter, and evaporates the water that is made there. If you do not do this, the exhaust system will rust from the inside out!
4) After the break-in period, you may return to your normal driving style, and the car will be prepared for any changes it might see down the road.
<font color=green>GG</font color=green>
#6
#7
Re: properly breaking in engine
COUPEDIT03 wrote:
"I thought the brakes have to be properly embedded. That process requires extensive heavy braking."
No. Heavy braking on any new brakes will only groove the rotors and fry the pads. To the best of my knowledge, there is no such process as "embedding" brakes.
New brakes shouldn't be worked hard early on. They should only be applied lightly until the pads wear to match the rotor's surface (in effect, "grooving", without actually grooving them).
If you want you car and all of it's components to remain in good condition for a fairly long period of time, the general rule is to not beat on it at all for the first few thousand miles. That goes for ALL cars, save pure racing vehicles (drag, NASCAR, etc.), which the G35 does not qualify as.
2003 G35 Coupe 6MT Leather
Premium, Aero
"There is no spoon"
"I thought the brakes have to be properly embedded. That process requires extensive heavy braking."
No. Heavy braking on any new brakes will only groove the rotors and fry the pads. To the best of my knowledge, there is no such process as "embedding" brakes.
New brakes shouldn't be worked hard early on. They should only be applied lightly until the pads wear to match the rotor's surface (in effect, "grooving", without actually grooving them).
If you want you car and all of it's components to remain in good condition for a fairly long period of time, the general rule is to not beat on it at all for the first few thousand miles. That goes for ALL cars, save pure racing vehicles (drag, NASCAR, etc.), which the G35 does not qualify as.
2003 G35 Coupe 6MT Leather
Premium, Aero
"There is no spoon"
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#8
Re: properly breaking in engine
the engine actually requires less breakin than the rest of the car. brakes, tranmission, dorr, windows etc.
just don't go over 4k for more that a few seconds, and vary the revs, and roadspeed alot. don't drive at a steady speed for an hour or so. also a good idea to engine brake to seal the rings better. negative pressure on them in addition to the normal combustion pressure.
i would suspect that abuse would show up in the transmission or rear end before the engine would show any signs.
just don't go over 4k for more that a few seconds, and vary the revs, and roadspeed alot. don't drive at a steady speed for an hour or so. also a good idea to engine brake to seal the rings better. negative pressure on them in addition to the normal combustion pressure.
i would suspect that abuse would show up in the transmission or rear end before the engine would show any signs.
#9
#12
Re: properly breaking in engine
No way to tell. Several schools of thought. I usually baby my cars but others don't, saying that the Japanese cars are so TIGHT they squeak.[img]/w3timages/icons/smile.gif[/img] Get your minds out of the gutters![img]/w3timages/icons/smile.gif[/img]
Did notice though that in my 4runner, I have had 2, it took between 10,00-12,000 before the engine seemed to loosen up. If you use Synthetic too soon it takes longer for the valves to seat properly, if they do that is. Like I said many different opinions and like a--h---s everybody has one, right?[img]/w3timages/icons/laugh.gif[/img]
<P ID="edit"><FONT class="small"><EM>Edited by merlin on 06/11/03 12:04 PM.</EM></FONT></P>
Did notice though that in my 4runner, I have had 2, it took between 10,00-12,000 before the engine seemed to loosen up. If you use Synthetic too soon it takes longer for the valves to seat properly, if they do that is. Like I said many different opinions and like a--h---s everybody has one, right?[img]/w3timages/icons/laugh.gif[/img]
<P ID="edit"><FONT class="small"><EM>Edited by merlin on 06/11/03 12:04 PM.</EM></FONT></P>
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