How does the FL-820S oil filter improve fuel efficiency?
The FL - 820S oil filter is provided with a silicone anti - drain back valve, which can withstand a temperature range from - 75 °F to 450 °F. This valve prevents the oil in the filter and engine from draining out when the engine is not running, avoiding dry starts. A proper oil film can be quickly formed when the engine starts, reducing wear during startup and also being beneficial to improving fuel efficiency.















