Lubrication Engineers has released an SAE 5W-40 synthetic diesel oil for engines to help further extend drains. The Monolec Ultra Syn Heavy Duty Engine Oil is a multiviscosity synthetic base oil ...

One of the primary advantages of 5W-40 versus 15W-40 engine oil is better fuel economy. In a controlled lab setting, GM 6.5L dyno testing showed a 1.5% to 1.6% fuel economy improvement for 5W-40 ...

AMSOIL 5W-40 Synthetic Metric Motorcycle Oil joins existing 10W-30, 10W-40 and 15W-50 viscosities in the AMSOIL Metric Motorcycle Oil family. It is designed to excel in all areas unique to metric ...

like AMSOIL's new 5W-40 Full-SAPS Synthetic Motor Oil. Its robust full-SAPS formulation provides excellent protection and performance in a wide range of vehicles. With AMSOIL European Car Formula ...

as well as Duron synthetic 5W-40 engine oil. Fleet manager Randy Bond says since they made the switch, they've had less downtime, extended oil drain intervals from 300 to 500 hours on the engine ...

Using the correct type of oil is equally important. If your 6.7 Power Stroke is a workhorse like most diesel trucks, Ford suggests Motorcraft 5W-40 fully synthetic oil regardless of the ambient ...

The more resistant oil is to thinning, the higher the second number (10W-40 versus ... so a 5W oil is typically what's recommended for winter use. However, synthetic oils can be formulated to ...

like AMSOIL's new 5W-40 Full-SAPS Synthetic Motor Oil. Its robust full-SAPS formulation provides excellent protection and performance in a wide range of vehicles. With AMSOIL European Car Formula ...