Hi everyone hope you're all happy and well on this beautiful Sunday morning. Well, at least it's nice in Mesa, AZ I feel for you folks that are dealing with the winter storms. Okay, down to business. I know that regular oil changes are probably the most important thing you can do to prolong the life of your engine. My question is just how much difference dies it really make if I do it every 3 to 4 thousand miles versus say every ten thousand. My 02 Town and Country has 154,000 on it but being disabled I can't do the oil changes myself anymore. I live quite far from any place to have it done, My house is on the backside of the Superstition Mountain range right at the base. So I don't get to town often. Also, I do have a couple cases of oil but no new filters left. How harmful would it be if I just pumped all the oil out with a syphon gun I have and replace the oil but not the filter, just in a pinch. Obviously I know the importance of a fresh filter but what do you guys think? I always value your input and insights. Thanks in advance and God Bless you all.