There’s no NASCAR, 1967 Ferrari F312, Porsche 911, or even your daily driver Hyundai Sonata without oil. Whether conventional or synthetic, engine oil is the lifeblood of your vehicle. Back to oil, ...

Oil is one of the most important consumables for a vehicle, and there are two main types of engine oil: conventional and synthetic. Each type of oil is made differently, wherein conventional oil is a ...

Once upon a time, synthetic engine lubricants were considered exotic and used in only the most rarified performance engines. In fact, one of the companies discussed here, AMSOIL, was the first company ...

Synthetic motor oil offers many advantages over conventional engine oil. Synthetics resist chemical degradation far better than traditional oils, and they typically have a higher viscosity index that ...

Aside from diesel fuel, engine oil might be the most critical fluid in a truck because it influences two of the top three equipment-related costs for fleets: fuel and maintenance. And with various ...

I am an old geezer who probably has lived through 100 or more oil changes in my lifetime, always using regular motor oil. Now I own a 2014 Honda CR-V that I bought used with about 10,000 miles on it, ...

Q: I have a 1994 Toyota Celica and have always used conventional oil. Should/can I change to synthetic? Can I mix the two? Car Doctor: How to spot a 'flood' car before you buy Car Doctor: Can you give ...

Q: I have a 2008 Toyota Highlander V6-powered limited edition with 74,000 miles, which runs great. Can I switch to synthetic oil if I had used conventional oil since the car was new? Is there an ...