Well I have been so busy in the last year and a half I did not change the oil in that time period and I checked the oil tonight and it did not read on the dip stick. I know the car burns about 1/2 quart in 7000 miles since it was new. I scratched my head and checked the log book and it was changed in Jan 2020 with about 50k miles on it. It has about 70k on it now. I put a quart in it and just barely got to the tip of the dip stick. I am going to change it tomorrow. So I hope I have not done any damage. It is a 2016 Mazda CX5. It has been a great car and so has my 2016 Mazda 3. We moved in that period of time and I did a lot of sight prep to get ready for that move and we had to hurry out of our place of 20 yrs. The reminder had not been set either. I told the wife if I never drive your car, I don't think about maintenance on it. She is going to have to get better at checking the log book about every 6 months. I guess the tires need rotating as well.