Delo Gold Mutigrade engine oil:
-Type: mineral / Group II (highly refined )
-API Rating: CH-4 / SL
Pwede rin ba ito gamitin sa gasoline engine? Does SL Rating tells it so na pwede siya sa gasoline engine?
Every change oil at 500 kms interval of flushing, palit din oil filter din ba?
Have read somewhere , some use diesel engine oil for flushing but not as far as 500 kms. so 4 times change would mean 2,000 km run on this kind of oil
In API CH-4 / SL, API is American Petroleum Institute, C is for compression ignition ( meaning diesel engines ), H is the quality ( CF or CG are lower than CH ), S is for spark ignition ( gasoline engines ) L is also quality ( SM rated are more advanced than SL ). Though I think they changed the C / S to Service and Commercial now. So technically, this oil is primarily intended for diesels.
Since every engine oil is rated as C / S, you can use it interchangeably in diesel or gasoline engines. Catch phrases such as "specially formulated for so and sos" are marketing strategies. Though you may definitely want the highest for your gasoline engine, the highest level I think is SM. For diesels, its CJ-4. ( 4 means four-stroke )