Both synthetic and conventional oil starts out as crude ... reduces motor oil's ability to protect your engine. Change oil ...

This causes the oil to thicken the longer it’s in an engine. Aside from that, synthetic oils also handle high temperatures better than conventional ... 10,000-mile change intervals on its ...

If you have a diesel engine and want a synthetic oil option, look no further than Shell’s Rotella. Compared to a conventional 15W-30, this product can improve fuel economy by up to 2.8% ...

If the engine is labeled for synthetic and it’s listed as such in the owner’s manual, moving to conventional oil ... carmakers have extended their oil change intervals when synthetic is ...

If your vehicle is due for an oil change, the oil of choice is either synthetic or conventional motor oil. But if your car's odometer is over 75,000 miles, upgrading to high-mileage engine oils ...

Conventional oils tend to wear down faster than synthetic oils. Synthetic oil costs more, but ultimately lasts longer. Pham recommended that all drivers change out their engine oil at least ...

Using the wrong oil for your engine can cause premature ... which is a mixture of conventional and synthetic oils, you should change it every 5,000 to 7,000 miles. Full synthetic oils will protect ...

I use normal quality of engine oil so my regular engine oil change interval is nearabout 1500 km. But if any body use quality synthetic engine oil it will run nearly 3000 km. It depends on quality ...