My mom recently got an accord V6 and I'm in charge of changing the oil and such. The owners manual says "severe" service is 3750 miles or 6 months. She makes short trips to work and doesn't get that many miles on it during a 6 month period. I put M1 0w-20 and a M1 oil filter on a few months back. Should that be okay given the small amount of miles driven and the length of the OCI? I put about 60+ highway miles on my car daily with my commute to work and school, so I'm not used to changing a cars oil so infrequently, even with the extended OCI I use mileage-wise. Just thought I'd get some more opinions.