R
Ray Chapman
I have a 2GM20F with about 500 hours. I moved the boat to Florida in the Fall. When I started the trip engine had 171 hours. I had always changed the oil every 50 hours and did not notice any usage of oil. On the way down, I noticed that it seemed to be using oil. I changed the oil every 100 hours on the trip and had to add a quart between oil changes. During the trip I cruised at between 2600 and 2800 RPM. I changed from 30 wt to 40 wt and that seemed to reduce the oil usage. I have recently noticed that it is getting hard to start and blows smoke when it first starts up.My first question is what might cause it to start using oil.The second is could the hard starting be related.