Is it true that new car must drive slowly until ur first sevices. Probably around 80-90 km/h. I just wondering if it is true.

yes and might be not
ppl claim engine still new like piston tight la etc etc
but u will never know what happen to your engine or car when it take from factory to your hand

My fren say need bawa laju laju to "warm up" everything. i pun duno this is real or not.

No need lar. Just vary your speed, don't try to drive constant speed for too long. My new car terus sapu 140km/h - 160km/h. And i believe they have already run in the engine a bit at factory.

thats what i though. but didnt they test drive it before they send it to the dealers? i mean to test their top speed n performance for each units?

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Added on July 13, 2011, 9:38 amthats what i think. My fren said "dont bawak laju2 or the engine n piston will rosak quickly"

This post has been edited by jayro_88: Jul 13 2011, 09:38 AM

just drive normally, rev up if you need to, slow if got traffic, no need to take extra precaution.
got warranty mar...

when my 2nd day got my car
i drive 170km/h at PLUS
end up, my car still running strong here

statement from them just to cover warranty part from loose & tear before the actual time...

so there's no need for me to worry much then.

the salesman will ram ur car, proton also test already ,

i test drive hyundai 1.6 auto , they disable the km/h and mileage ,
later they pass u the new car

Logic dictates that you be gentle with the new engines to enable the engine to break in properly

pushing it to the maximum might cause it burn out but i don't see that happening with new cars.

in anycase, what's the harm of being gentle with your new car for the 1st 5000 km?

New car engines are manufactured with very high degree of precision, so the run-in is not so important nowadays. Last time, say 20 years ago, yes, the run-in will be more important because the engineering precision is not so high.

i was told by SA that try not to rev over 3.5k rpm.

This is a practice done for more than decades ago. Newly manufactured engine might have splinters trapped in the engine. The engine oil which might carry loose splinters will be changed in a short period of time as a mean to flush out the splinters. Hence, new vehicle is subjected to services as it reaches the first 1,000km mileage.

Acceleration coupled with high speed travelling will caused the engine oil to rotate faster thus causing possible frictions between the engine inner surface and the splinters.

Hence, no "unnecessary" speeding please.

This post has been edited by felixwang: Jul 13 2011, 09:53 AM

don't be too gentle to your engine while it's still new, just push it with different gears and different speed, it's ok. But to red-line it I am not sure though.

yes for safety side for prevent any human error such as no tighten some screws...
imagine your car parts falling off when u doing high speed...

some more the brake system may no 100% working due to still new condition as the disc and pad no able to 100% "touch" with each others......

This post has been edited by gkl83: Jul 13 2011, 09:58 AM

No need 80 or 90 km/h then.

if u ever heard of "engine break-in" concept.. it makes ur car better than other ppl car... engine last longer...

from time to time, rev up ur engine, drive fast... wanna understand more about engine break-in --> http://www.mototuneusa.com/break_in_secrets.htm

Listen TS, just drive like normal, ok? and service it on time. kapish?

I read my car manual and it does mention a break in period. Specifically for the first 2000km drive at varying engine speeds but don't rev past 3500rpm or drive past 150km/h.