Tony Leonardi has been my machanic for the past 20 yrs. He not only does oil and filter service, he completes a full inspection of your vehicle and a list of recommendations of future services along with photos of the areas of concern. Tony has a 3 year 36,000 mile warranty on all his repairs. If you have a question regarding an issue just call him and he'll make it right. I also want to mention Edgar the auto advisor who is very knowledgeable and capable of making decisions on his own. If you have'nt been to Leonardi's on Vallejo, Novato Ca. I'm sure you won't be disappointed .