Quote:
Originally Posted by Dvs510
So I’ve always thought it was 1500 miles for break in period. Then I saw this while looking up something else. Anybody have more info or thoughts on it?
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Yeah, the problem is this is just another example of documentation contradictions from GM and Chevy regarding this car. The 2018 owner's manual clearly states the break-in period is 1500 miles, including the 4000 rpm engine restriction (Page 209):
"Follow these recommended guidelines during the first 2414 km (1,500 mi) of driving this vehicle. Parts have a break-in period and performance will be better in the long run.
. Avoid full throttle starts and abrupt stops.
. Do not exceed 4000 engine rpm.
. Avoid driving at any one constant speed, fast or slow.
. Do not drive above 129 km/h (80 mph).
. Avoid downshifting to brake or slow the vehicle when the engine speed will exceed 4000 rpm.
. Do not let the engine labor. Never lug the engine in high gear at low speeds. With a manual transmission, shift to the next lower gear. This rule applies at all times, not just during the break-in period.
. Do not participate in racing events, sport driving schools, or similar activities during this break-in period.
. Check engine oil with every refueling and add if necessary. Oil and fuel consumption may be higher than normal during the first 2414 km (1,500 mi).
. To break in new tires, drive at moderate speeds and avoid hard cornering for the first 322 km (200 mi). New tires do not have maximum traction and may tend to slip.
. New brake linings also need a break-in period. Avoid making hard stops during the first 322 km (200 mi). This is recommended every time brake linings are replaced.
. Should the vehicle be used for racing or competitive driving (after break-in), the rear axle lubricant must be replaced beforehand."