Hi Guys. Newbie here. My Aqua Mica will be ready on coming Wednesday. Me, like louis198920, going to pick up my car from Penang, then will drive it back to KL on the next day. And, like louis, I'm concern on the engine breaking in issue.
I made some research through the net (the best auto advice source i have since I don't know any automotive engineer), and I found a few contradicting suggestions on the method:
1. low rev break-in: TREAT GENTLY - For a few hundred miles (500-2000 MILES, varies from sources) that the rev should be ranging from 3000 - 3500 rpm or not more than 1/4 throttle, or 75 % of max power (or blah blah blah... you got the idea). Keep the speed low.
http://wiki.answers.com/Q/How_should_you_%...in%27_a_new_carhttp://www.driverside.com/auto-library/bre...n_a_new_car-5662. high rev break-in: ALL THE WAY OUT, NO WORRIES: this is the easiest, rev up and accelerate as much as possible (prefereably on racetracks, just be careful on streets) for 200 miles. This dude sounds like he has experience in cars.
http://www.mototuneusa.com/break_in_secrets.htm3. keep rev swinging, max rev not important: NO CONSTANT SPEED - this method says rpm and speed is not important, the most important point is to keep the engine swings between high and low revs.
http://www.theglobeandmail.com/globe-drive...article4180794/4. long winded method: THIS SOUNDS LIKE A FACTORY METHOD - a long procedural way of breaking in engine, involving switching off the engine to complete cool downs. ** read yourself
http://www.ntnoa.org/enginebreakin.htm5. choose either high or low rev, depending your future demand: FORGIVING METHOD - a dude in a forum claimed that is method is suggested by Ferarri (but I could not find this method in ferarri related sites)
6. no need to break in: YIPPEE, NO SWEATS! - the logic is modern construction of piston rings and break in has been done in the factory
http://wiki.answers.com/Q/How_should_you_%...in%27_a_new_car7. follow the car's manual book: VERY DIPLOMATIC METHOD - despite all the above mentioned methods, most authors still advise to follow car manual (who knows, maybe to avoid possible lawsuit for misleading the audience). But the author of method #2 above disagrees and has his own opinion on this
Note that the opinions really vary in terms of:
Duration - some people say 20 min (or alike) of breaking in, others say nothing about duration
Mileage - some say 200 miles, others 1000 miles, or even 5k miles or a lifetime!
My Qs:
1. Which is the correct method?
2. What did the manual say about engine breaking in?
3. MOST IMPORTANTLY, do the above method applied to hybrids, since in hybrids the electronics is controlling the engine output with interference from the motor, not the driver? What i mean is, you wanna the swing to high rev by pressing on the accelerator, but the engine rev up lazily with the help from the electric motor, so ultimately you can't rev up the engine fast enough.

Is PC your 1st car? Why so concern about engine breakin? Our PC consider as continental car, which don't really need any breakin & low maintain, due to about half the time it run on EV. So as it don't have rpm meter to monitor the engine rpm. If not mistake PC engine will run up to 4k rpm only, so impossible to rev till 5-6k rpm to breakin.
Most old people always said must off the air-con & radio before off the engine to protect the car battery & car electronic. But I don't really see it really affect anything, my prev Saga BLM battery last more then 3 years till the day I sold still good in condition. I also done high rev break in, but I don't see it help in getting better FC after.
I believe these are myth, which don't really have real proof.
These day modern cars are well design & those old time problem most had solve (except local made car). Just drive it as a normal car. I believe the more thing you worry & care, the more likely problem may occur.
Myself before the 1st service also drove up to 160km/h very stable & won't really feel I'm speeding till you notice the speed.
Today I just done my 2nd service, cost RM76 & done car wash with in 1 hour. After my 3rd service, I will use semi synthetic & service every 10k as the manual.