blending of castrol oils with different grades

[dnomyar]

Thanks a lot BKR5...it is assuring to hear sound advice from knowledgeable and credible source.

[shadow]

minimal lang naman ang magagastos mo sa isang extra liter na magnatech eh. bumili ka na lang ng 1 gallon magnatech, huwag mo na ihalo magkaiba ang viscosity eh

[dnomyar]

Sabagay, P299 lang naman sa Ace hardware. Alternate ko na lang next year na palit ng oil. salamat ng marami sa reply!

[niky]

That's nothing... I mix different blends of synthetic and non-synthetic all the time... when I'm nearing the oil change and the oil gets a bit low, I sometimes top off with a different brand.

[burjegol]

an oil is an oil. as long as the indicated Sp. Gravity falls within the engine's spec, it is ok to mix them. it will still lubricate your engine.

[box_type]

follow up question, how long should we store the leftover oil before it can be considered as not suitable for use anymore?

[dnomyar]

i read somewhere that as long as moisture doesnt sets up into the oil, it will last. so the oil is as good as long as the container does not rot or fail....my two cents worth...