How to solve the problem?
The air filter dirty car will lack of strength, and the oil is not into the air, look at the brakes did not eat up,
If the EFI engine is normal, if the engine is Weichai EGR, it may be in the air, and then either your bridge is speed is relatively low, but generally not, diamond truck standard configuration is 5.73 speed ratio, to the service station to see, not what is the big problem.
Find a master to give you the car, compared to an oil pump on the OK, but it will cost 2-3.
