The Best Oil Change In Rowland Heights - Diesel Zone Diagnostics - Pouring Valvoline

"Probably the fastest oil change I have ever had. They were very courteous and answered all of my questions. I got synthetic oil for around $88."

"Diesel Zone Diagnostics is a great place to have your car serviced! I brought a car in that was in need of an oil change, and Andrew took care of it in no time. I would definitely come back here again!"

"I was searching for an auto repair shop that was local, affordable, provided quality work, and honest. I randomly Googled this place and took a chance and so glad I did! When I went in a few days ago, I was greeted by the owner, Andrew who was very friendly and professional as were his techs. My car was in need of an oil change, new air filter, headlight replacement, and a new battery. Honestly, the pricing was exceptionally fair and my car was ready in an hour! After I paid, Andrew gave me a discount for my next visit and walked me to my car! How nice is that! I love supporting local businesses because they value their work and the customers experience which is evident at Diesel Zone. That’s why I am going to come back and recommend this place to everyone I know! ⭐️⭐️⭐️⭐️⭐️"

"10/10 service. Easy communication. Nice service. It just take me 15 mins and all set. Also i get discount for second time oil change. The owner so cool!!! I’ll definitely come again."

"Had a great experience with diesel zone. Came in for an oil change towards the end of the day and they took me in right away! Friendly service. Lots of lanes. No wait time. Took less than an hour. They are located near a very busy intersection populated with many stores and restaurants so I decided to have dinner across the street and they were done by the time I finished. I think I paid around $70 for synthetic oil change. Pretty average and fair price. The owner Andrew is a young veteran. Very cool, down to earth, and hard working individual if you ever get the pleasure to meet him."