how to drain oil properly

[rsnald]

run your engine until oil temp starts to rise. Or you can drive around your neighborhood until the oil temp rises to its normal temperature as indicated by your temperature gauge. Heating the oil makes it less viscous, or more fluid, so it flows out easily. drain with the oil lid open to prevent vacuum effect. pag konting tulo na lang ng oil, remove the oil filter (make sure na masasahod mo yung tatapon na oil from the filter). No need to blow with compressed air. Compressed air tends to have some moisture since compressing air condenses the water vapor inside the ballast tank of the compressor making the pressurized air moist. Moisture is bad for your engine internals, it may cause serious corrosion problems.

pag totally ubos na yung oil, (which will take about an hour only if you started with a warm engine/warm oil), re-insert the oil pan nut and put new oil filters then refill with new oil. hth ;)