QUOTE(zeng @ Nov 26 2018, 08:08 PM)
Hi, alphaz ,
Very good blotter spot tests performance, and there is no signs of centre zone perimeter ring developing indicating this oil detergency/dispersancy properties are still in good shape, despite the mileage .
The slightly greyish zone indicates increased level of contaminants and combustion byproducts at 14,160 km which is well dispersed and good .
But that's nothing to be alarmed about as I believe this used oil Helix Ultra 5W30 is still in serviceable condition.
Should the oil be still in use, may be take another blotter spot in 2000 - 3000 km and see how the centre zone goes .....
Hi zeng,Very good blotter spot tests performance, and there is no signs of centre zone perimeter ring developing indicating this oil detergency/dispersancy properties are still in good shape, despite the mileage .
The slightly greyish zone indicates increased level of contaminants and combustion byproducts at 14,160 km which is well dispersed and good .
But that's nothing to be alarmed about as I believe this used oil Helix Ultra 5W30 is still in serviceable condition.
Should the oil be still in use, may be take another blotter spot in 2000 - 3000 km and see how the centre zone goes .....
Here's a 24 hour blot test result at 16,000 km, Shell Helix Ultra Fully Synthetic 5w30 Made in Hong Kong, in Elantra 1.8 2002.
It seems to me that it might still be good for another 2000 km I suppose?
This post has been edited by alphaz: Dec 25 2018, 06:43 AM