hi,
i keep thinking of this question, let say if the engine oil getting low/ dry up to half o more than half,..but ur mileage is being use like 1.5k km only..
is it ok to top up the engine oil o anything??
yesterday i just install my ground cable....
first is that my car is old..
so originally.. if open lights.. the rpm will drop a bit..
but then.. after i install ground cable, also same.. :(
dono...