How many days did it take you to get thru break-in period. . . 15 for me.
12-30-2006, 11:08 AM
#2
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I guess that depends on what mileage you consider the break-in point to occur...
<center><img src="http://abwc.home.mindspring.com/rs4/misc/061229_RS4_MileageByDay.JPG"></center><p>If one considers it to be 1800 miles, because the owner's manual cites that mileage as the last specified throttle/load limit, then my break-in was complete on day 23, aided by a 450 mile trip to SD.
If one considers it to be some other mileage, then Your Days May Vary...
If one considers it to be some other mileage, then Your Days May Vary...
12-30-2006, 07:08 PM
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I promise it will only get better... You are not done until 5,000+ miles...
It really gets faster every week. You won't get rid of that silly RS4 smile for quite some time.
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12-31-2006, 09:47 AM
#8
8900+ miles according to the oil data and the butt dyno
Looking at the oil analysis that I've done, Aluminium and Silicon wear numbers are fairly indicative of how engine break-in is progressing. (A large amount of the Silicon and Aluminium wear comes from the cylinder walls.) Here are the numbers I've measured, and they compare well to other owner's oil analysis:
Mileage ----- Silicon ----- Aluminium
1808 -------- 27 ppm ------ 20 ppm
3134 -------- 10 ppm ------- 8 ppm
5298 --------- 8 ppm ------- 8 ppm
8233 --------- 6 ppm ------- 6 ppm
8916 --------- 5 ppm ------- 3 ppm
I extrapolated from the data I have and found that the break-in wear levels off somewhere between 10K and 15K miles. This corresponds pretty will to other owners and my observations that the power of this engine keeps increasing over time.
This spring, after we thaw here in New England, I'll be doing Mustang AWD Dyno testing on the stock engine and exhaust, add catbacks, run 20-30 minutes of partial power runs on the dyno to adapt the ecu, dyno at full power, add downpipes, run partial power runs on the dyno to adapt the ecu, dyno at full power again, for a real before-and-after comparison on the same day. By then, I suspect I'll have around 13K miles on the engine.
Mileage ----- Silicon ----- Aluminium
1808 -------- 27 ppm ------ 20 ppm
3134 -------- 10 ppm ------- 8 ppm
5298 --------- 8 ppm ------- 8 ppm
8233 --------- 6 ppm ------- 6 ppm
8916 --------- 5 ppm ------- 3 ppm
I extrapolated from the data I have and found that the break-in wear levels off somewhere between 10K and 15K miles. This corresponds pretty will to other owners and my observations that the power of this engine keeps increasing over time.
This spring, after we thaw here in New England, I'll be doing Mustang AWD Dyno testing on the stock engine and exhaust, add catbacks, run 20-30 minutes of partial power runs on the dyno to adapt the ecu, dyno at full power, add downpipes, run partial power runs on the dyno to adapt the ecu, dyno at full power again, for a real before-and-after comparison on the same day. By then, I suspect I'll have around 13K miles on the engine.
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