With so many available motor oil brands and several labels like "synthetic blend," "full synthetic ... to consider is your car's age. If your vehicle has over 75,000 miles, you should consider ...

The best synthetic oils offer more mileage, keep the engine ... vehicles, especially in northern climates, including commercial trucks and heavy-duty pickup trucks that allow an SAE 5W-30 oil.

But aside from the origin, is there any practical difference for your vehicle ... engine life, synthetic oil is for you. Mixing conventional and synthetic or using a synthetic blend is also ...

because Shell Rotella® heavy duty diesel engine oil failed to provide proper lubrication. Synthetic blend oils, such as Shell Rotella T5, offer a middle ground between conventional and full synthetic ...

"An interesting trend in engine and drivetrain lubricant formulations has been increased use of synthetic ... with heavy-duty diesel engine and electric vehicle manufacturers, oil and lubricant ...