2009 2.4 litre engine break-in procedure

[Lunchtimer]

Hi, What's the best way to break-in a new engine?The manual says to vary the speed for the first 805 kms. Should a person step on the pedal and get the revs up during beak-in?

[j42.snyder]

I bought mine 3 weeks ago and now have 3100km on it, so I guess I'm past that initial break-in part now.During that time, don't hammer on it "off the line" at all - that's never good for any engine/transmission. To help parts seat (like rings, bearings, etc), it may be beneficial to open it up briefly at higher speeds - such as flooring it at 60km/h up to 100km/h (I'm not going to recommend speeding - and I know what the limits are in SK). I would start backing off before you get to the 100 mark though - it's also not particularly good to go from "full open" to "full closed" throttle.Basically, I would recommend to vary your speed by a few km/h every few km. I only opened mine up once so far (like I explained above) - but it's had the occasional "scoot" to pass someone since.I haven't honestly noticed much difference in how the engine feels just yet. Maybe slightly smoother after about 2,000km, but fuel economy is still a bit disappointing to me so far. My brother also has a '09 2.4 he bought last May, and he said that after about 10000km his mileage improved noticeably - so I'm hoping for the same effect. Time will tell.Overall - just don't treat it abusively, and don't set the cruise at one speed for hours on end. With the engine technology used today, I don't think that the break-in period is nearly as important as it used to be. Just enjoy the new car!John

[Lunchtimer]

Thanks John.I think I'll heed your advice because it seems to make sense. The motor only has just over 1000 kms. on it so far. It does seem to be quite a peppy motor and gets up to speed nicely. Thanks and enjoy yours also, hello from SK.