12-19-2011, 08:05 PM
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#1 (permalink)
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Base Member
Join Date: Sep 2011
Location: Discovery Bay
Posts: 234
Drives: 16 370Z Sport Wht S7
Rep Power: 6725
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Quote:
Originally Posted by ImportConvert
How did you break the car in and seat the rings? What driving method did you use? This business about the car already being broken in when you get it, I have found to be total BS based on my experience with my Z06.
Tail-pipes were sooty as hell for 2-300 miles, and I didn't check the oil from the factory (should have  ) but when I finally did at 585mi, it was 1/2 qt low. By then I had seated the rings properly, changed the oil, and in 2000 miles since it hasn't burned an amount that could be seen on the dip-stick and even after hundreds of miles the tail-pipes are not sooty.
My method:
Gentle around-town stop and go driving until I got to the freeway.
On the freeway: Cruised up to speed limit, put it in 4th gear, let it drop town to 20 under (with noone around) and then accelerate strongly, but without flooring it, to 20 over (I don't advocate this...). Let it coast back down.
Anyway, I did that a good bit over a few hundred miles, passing people, playing with it, etc. and after a while began using 3rd gear, etc.
The main thing is to load the rings through acceleration and deceleration in-gear without going much over about 4-4500rpm or so. This is plenty sufficient to seat the rings. |
In the Z it's recommended that we don't go over about 4K during break in for the first 1200 miles. If you varied your driving during the first 1200 miles your rings / break in should be just fine. You'll probably notice a quart or two of oil to be burned during break in. I noticed about 1/4-1/2 quart when I replaced the Ester Oil at 1800 miles. Waiting to get 5K on her now for some Am / Redline Oil / Mobil 1 stuff. My Maxima with 35VQHR went through the exact same process.. as did my 350Z and Pathfinder. All vehicles burned less than a 1/2 every 3000-4000 miles. I replace the oil at those mileage marks because it's cheap insurance and only takes about 15minutes to do at home. ;-)
With owning turbos and superchargers early on in life I realized that clean oil is the best thing you can do for your car and it's less than a tank of gas every 3000-5000 miles. You really can go 5000 miles on syn changes... even longer... But, I like doing oil changes because it gets me under the car to check out all the other stuff while I'm there waiting the the oil to drain.
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