Chinese 150cc GY6 with 60 hrs and 20 hour OCI with Sinopec Tulux T600 (Kids 4 seater go kart)
Many Miller and Lincoln Welder Generators Powered by Kohler V twin engines all over 2500HRS using STP SAE30w oil with 100hr OCI, Baldwin oil filters and fuel filters using OEM air filters since new.
6 Honda GX390's with 40hr OCI most with 200+hrs(tar kettle's pumps and roof cutting machines running WOT in 100°+)
STP SAE30W
1 Chinese 420cc engine in one of the roof cutters with 300hrs, 40hr OCI (has been a very reliable small engine, it replaced a GX390 wich had 300hrs.
STP SAE30w
1. Chinese 420cc engine in my Kellog 30 gallon air compressor. With only 7 hrs (it replaced an electric motor) hope it gives me many years of service.
STP SAE30w.