Thoughts on Mystik 15w50?

[Redland1]

(11-02-2021 )Rawze Wrote:  Its a really fancy name for run of the mill Citgo (south america) brand of oils.

The bigger question is ... is there a need for you to actually use/need a synthetic?.

It’s a semi synthetic like Mobil Delvac is.So far my OCI’s have been at 10K and my MPG have been 6mpg or really close to it.How far can I extend it? Also looking at a bypass filter and oil testing.