5W30 synthetic. Filter and flush every 7500 miles. Do not use dino oil, it is too dirty and tends to plug up the PTC and small diameter vacuum lines on turbos.
For high altitude turbos only: If you need to go from 0 - 30 mph in a hurry, do NOT floor the gas pedal. The LPT doesn't come to life before 1600 rpm, 2500 for HPT, and the open throttle with low oxygen atmosphere will cause the engine to stumble until the rev's increase. I almost learned the hard way trying to cross 4 lane US24 in Colorado Springs with a 1998 R. The turbo didn't 'kick in' until I was crossing lane 3!
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Keeping it running is better than buying new
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