This is the million dollar question. Do you like to repair your vehicle once it's broken or do you like your car running perfectly all the time. If you like it running perfectly all the time then the answer would be YES, it is necessary. Maintenance keeps you happy! No surprises, no breakdowns. We suggest always doing your maintenance. Think of it this way…you can plan ahead to pay for maintenance. No surprises. Repairs are always a surprise and you may not have the funds available at the time you now HAVE to replace it. That is not fun.