Since the 1950s, the popular calculation of how old a dog was âin human yearsâ has been that 1 dog year is the equivalent of 7 human ones. Even though this formula has been around for a surprisingly long time, the reality is not so cut-and-dried. That doesnât stop many people from defaulting to this traditional calculation.
Oil Changes. I have a 2006 Hyundai Sonata with 56,000 miles on it. The owners manual says to change the oil every 7500 miles. The place I take the car to for the oil change says every 3000 miles. Friends of mine say every 3000 miles because it is mainly driven in the city.
A local oil change recently wanted to charge $80+ for an oil change using synthetic motor oil(Valvoline)I did not do this as I was prepared to pay $19.95 qat this location as I did on my 2006 Prius.I had them use 5w20 as previous.They also stated that the oil needed to be changed at 4000 miles,whether regular or synthetic oil was used.