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Engine Break-In Techniques

4.8K views 39 replies 16 participants last post by  roverggm  
#1 · (Edited)
After 2 months, 3 delays & 1 faulty order, I finally got to drive home my new 07 SE V6 :clap:

I read Toyota's suggestion on the break-in process (P.286 in Manual) and tried to follow it to the best of my abilities as I was driving on the freeway. What I ended up doing was using the sequential shift to go between 4, 5, 6 as I was going 60-70MPH. Reason why is I tried to keep the RPM @ 3,000RPM for a minute then lowered it to whatever 6 gear took.

So my question is, was what i did acceptable? & What did you do for the break-in process?

I thank you in advance for your replies.


(Sorry if there's already a thread on this, the search feature didn't bring anything up)
 
#2 ·
The usual bro, my dealer told me at 3000k your fine to stop driving like a grandma and of course warm ups in the mornings or after long parks warm it up for about 3 to 5 mins. oh yea after 5000k which is when your first tune up service should come through and your engine by then should already be kicked in and no worriez. I have 5,500 miles on my v6 and i still drive it like it had 200 miles. gotta baby my SE:thumbup:
 
#3 ·
I now have approx. 900 miles on my 07 Camry XLE. I tried driving it as smooth as possible (slow accelerations, soft braking...etc) and taking it easy on the engine. Ocassionally there would be times that require me revving up the engine to make a quick turn, or lane pass.

I'm not sure if those revving of the engines and working the engine hard have done anything to my engine/transmission? Yesterday I picked up a loaner car (07 Camry XLE 4 Cylinder 300 miles) from the dealership cause my car was in the shop for a little dinge, and I don't know if it was the car or just me psychologically (being the car is 300 miles) felt like it accelerated a whole lot faster (tiny taps on the acceleration sent the car shooting).

Is the acceleration pedal for the 07 camry supposed to be softer after breakin???
 
#4 ·
It really is not necissary to 'baby' these engines after a good 2k mile or so breakin.

Also, you need to CHANGE YOUR OIL after 1500-2000 miles

if you run the same oil to 5K you are making a mistake.

What I did, and have always done, was run it 1200 on whatever trash oil they put in it when its shipped, then had it changed to a good name brand conventional oil till 3500, then put Royal Purple in it, and thats what it'll have till the day I say goodbye to the car.


You want to avoid lots of redline-tapping WOT runs, as those can promote excessive wear, but theres no need to rumble along below 2000 rpm the entire time.. in fact its not good for the engine to never see any revs like that.. you can get bearing scoring and other nasty things if you don't vary the speed during normal operation, but especially during break in.
 
#5 ·
GENSIXER said:
The usual bro, my dealer told me at 3000k your fine to stop driving like a grandma and of course warm ups in the mornings or after long parks warm it up for about 3 to 5 mins. oh yea after 5000k which is when your first tune up service should come through and your engine by then should already be kicked in and no worriez. I have 5,500 miles on my v6 and i still drive it like it had 200 miles. gotta baby my SE:thumbup:
I hope you meant oil change, not tune up at 5k? :confused:
 
#7 · (Edited)
GENSIXER said:
I said tune up because it covers all, who knows? what if I needed more than an oil change wireless!:cursin:
Don't get all angry with me. A tune up (often referred to as a Major Service) is a specific service that includes many things that our cars are designed to not need until after the warranty expires. If you need a tune up at 5k, give the car back :disappoin
 
#8 ·
MannyWithDaCamy said:
LMAO!! Wireless always has something bothering say :thumbdown :thumbdown :disappoin
I didnt attack you or this guy. With you, I questioned your logic in a tactful manner. With this thread, I merely assumed he meant the logical response and brought it up in a respectful manner. He chose to take it personally.

Do you think it is logical to get a tune up at 5k miles on a new car? Didn't think so. Although, if you're willing to spend $40k on a $30k car, you might want to spend several hundred dollars on unnecessary service work :lol:
 
#10 ·
Sooo........... How about those Cardinals?
 
#11 ·
wireless said:
I didnt attack you or this guy. With you, I questioned your logic in a tactful manner. With this thread, I merely assumed he meant the logical response and brought it up in a respectful manner. He chose to take it personally.

Do you think it is logical to get a tune up at 5k miles on a new car? Didn't think so. Although, if you're willing to spend $40k on a $30k car, you might want to spend several hundred dollars on unnecessary service work :lol:
wOW $40 on a $30 cam :disappoin but anyways manny has a point wireless , who knows maybe he right , maybe the dealer placed that oil change sticker on his windshield to comeback @ 5,000, and they did it with my car as well. two weeks ago i went back to the dealer at 4000 miles because i knew it was kind of ridiculous to change it at 5000 but they said the free warranty bullshet can only change it at 5k. your not the top shet wireless you do disrespectfully top others opinions all the time find another way to comment on topics.:hammer:
 
#13 ·
GENSIXER said:
wOW $40 on a $30 cam :disappoin but anyways manny has a point wireless , who knows maybe he right , maybe the dealer placed that oil change sticker on his windshield to comeback @ 5,000, and they did it with my car as well. two weeks ago i went back to the dealer at 4000 miles because i knew it was kind of ridiculous to change it at 5000 but they said the free warranty bullshet can only change it at 5k. your not the top shet wireless you do disrespectfully top others opinions all the time find another way to comment on topics.:hammer:
I'm not talking about oil changes. You said TUNE UP, not OIL CHANGE. Big difference. If you're going to talk smack, be accurate and detailed in your argument.
 
#14 ·
GENSIXER said:
The usual bro, my dealer told me at 3000k your fine to stop driving like a grandma and of course warm ups in the mornings or after long parks warm it up for about 3 to 5 mins. oh yea after 5000k which is when your first tune up service should come through and your engine by then should already be kicked in and no worriez. I have 5,500 miles on my v6 and i still drive it like it had 200 miles. gotta baby my SE:thumbup:
Hi Dude, I read here some time back, that the factory will actually rev up that engine and transmission to red line for about 15 minutes, then they get installed in the cars... so you dont have to baby her too much. but i understand your love affair...:)
 
#15 · (Edited)
RICO8458 said:
Hi Dude, I read here some time back, that the factory will actually rev up that engine and transmission to red line for about 15 minutes, then they get installed in the cars... so you dont have to baby her too much. but i understand your love affair...:)

wow what way to test these v6's before they go out.
Alright!! i can rape my camry now lol :lol: thanks Dude!
 
#17 ·
Drive it!

Hi Mistabullet;
Break the car in the way you will drive it all the time! If you like to push it to redline, do it whenever you want. I have owned Toyyotas, Nissans, Infinitis, Hondas abd I pushed them to redline within about a 100 miles of driving it from the showroom.
I don't understand why some one would buy a "sports" family sedan and not drive it like one.
Enjoy the car as you like it to be driven.
Have a great day;
 
#18 · (Edited)
Winterpeg said:
Hi Mistabullet;
Break the car in the way you will drive it all the time! If you like to push it to redline, do it whenever you want......
What if my usual driving consists of cruise control? I'm pretty sure the manual specifically states you should just vary the speed for the first 1,000 miles. But I wanted a little more then just "Do not drive for a long time at any single speed, either fast or slow." so after a quick google search I found this site: Engine Break-In (It mentions the Rav4 but applies to all "new cars" according to the literature)

This is what the author recommends:

"For the first few 100 miles, maybe you shouldn't get past 4000 rpm. Then you can gradually go higher and by maybe 1500 miles, you can start to push it to 5000 rpm. Do not run it up to 5000 rpm and just hold it there; rev it up as you're driving and change up quickly when you get to 5000 rpm. When you get up to 2000 miles or more, maybe you might like to try running it up to the redline for brief spurts. I learnt that this is
helpful for the engine from a racing driver and mechanic."
- Source

So im wondering if this is a good/bad technique?
 
#20 · (Edited)
kenny1773 said:
I love putting this link in these threads :)

http://www.mototuneusa.com/break_in_secrets.htm

This is what I do and in several cars and one motorcycle I have had no worries and no oil burning at all

My 05 camry was brokein ths way.

like they say, run it hard and it will always run hard

damn I already have 4,500 on my v6 ,,,am I too late to try out that secret break it in?
 
#22 · (Edited)
Damn you! This process is so important that im afraid to do that. MUst do more homework...


I was hoping for a solid answer from ToyotaNation but it seems as though a topic as important and vital as this one comes with many opinions. I must now learn about the inner workings of this break-in period and come to the conclusion myself. Thank you all for your comments, they have been helpful. I will post my conclusion one i come to one and let the rest of you butcher it to see if it holds.
 
#23 · (Edited)
Hey kenny1773 How is your gas mileage after using that technique on the camry??



**Update***

After reading a bunch of articles on the net the most common theme i'm seeing is to definetly not baby it and constanly vary speeds & RPM's.

The main idea is:
The piston rings need to seal by giving them more pressure (Drive hard and take the engine through its gears) but,
they also need to cool down to prevent glazing (vary the speed to cool down).

Conclusion: Short bursts of speed taking the engine through the gears and then letting it cool down to prevent glazing seems to be the best method. Pretty much goes with what the manual says.
 
#24 ·
Mistabullet said:
Hey kenny1773 How is your gas mileage after using that technique on the camry??



**Update***

After reading a bunch of articles on the net the most common theme i'm seeing is to definetly not baby it and constanly vary speeds & RPM's.

The main idea is:
The piston rings need to seal by giving them more pressure (Drive hard and take the engine through its gears) but,
they also need to cool down to prevent glazing (vary the speed to cool down).

Conclusion: Short bursts of speed taking the engine through the gears and then letting it cool down to prevent glazing seems to be the best method. Pretty much goes with what the manual says.

Thanks for doing the research and sharing your summary. That's basically what I did, by ignoring a break in period. ;)

Don't have much of a choice in DC rush hour traffic. You go slow, then speed up to change lanes or close the space of someone else that just changed lanes...then slow again.
 
#25 ·
My gas mileage is fine. Like wireless said, DC traffic *IS* a break in cycle :lol:

I went a little further by locking into a lower gear and catching the decel like motoman says to.

All in all, I road it harder during break in than I have the rest of the time I have owned it.

stop and go rush hour traffic, my mpg is about 21-22 (avg calc'ed over 3 tanks, filled at the same gas station)

My highway has been around 32-33, not possible to have the same gas station, but possible to cal average over 2 tanks of gas, I usually run highway loaded down and at 80mph.

If I went 55-65mph, I am sure I would beat the 34mpg estimate, but I CAN'T DRIVE 55!! :)

I have 23k miles now, mostly city, and no oil burn between 5000 mile changes, no leaks, she starts and runs great. I recently switched from Mobil I oil to Motocraft semi-synthetic oil (after much research at BITOG forums) and I can honestly say, I see no difference in performance or gas mileage due to oil change.


I have also stated on this forum before that I don't think you can break a toyota engine in the wrong way. Drive how you normally drive and it will be perfectly fine for 100's of thousands of miles. If you are a perfectionist, follow the mototune link.