QUOTE(ahsam1212 @ Apr 6 2018, 11:00 PM)
OK.. Here's go my blotter spot test.
Kenari standard 1L engine. Mileage 133k.
Current oil mileage is about 6k km, with perodua 5w-30 semi synthetic, gold bottle.
Black centre ring is obvious, but oil is not that dirty yet.
Any 5w-30 budget oil that has good performance to intro?
blotterYou're right ahsam,the oil is not that dirty yet.
If I may add this used oil is still serviceable and has some reasonable life from now on.
Agree with you its black centre ring is visible or obvious ......
and this indicates dispersancy property of this oil at some 6000 km usage ,begins to 'breakdown' ..........
and that's perfectly normal in a used oil sample like yours and it's not the end of the world or due for oil condemnation.
Do note the centre zone(or area) within the 'black' centre (perimeter,circumferrential) ring is transparent and light coloured ..... and that's good news as it's not opaque and dark(or black) coloured......
indicating oil dispersancy is still performing as intended/designed and hence serviceable.
I wouldn't say this Perodua 5W30 semisyn doesn't have good performance ..... yet, and it seems to be doing ok as of now.
If you haven't dumped the oil, do another blotter spot test some 2000 km down the road, and evaluate from there.IMHO.
This post has been edited by zeng: Apr 7 2018, 09:03 AM