My AC 400 auto has been sitting in the garage for two weeks, I am going to change the oil and need to know if I should let it warm up first or just drain the oil since everything has had a chance to settle to the bottom of the case. I plan to let it drain overnight and fill it the next day. Any opinions on this? Thanks.

 

change it hot.... just like a car or any engine driven vehichle.....

 

Oper2nyst is right. The oil drains better when warm because its runny instead of thick

 

Cold sludge will sit there no matter how long you let it drain for!

 

Thanks, I knew that I could count on Ya'all for the best info. I will follow the advice given.

 

always drain when hot, that way the contaminants will be in suspension and not hiding in nooks and crannies.