[suspectnumber961]

I'm going to be "testing" Motorsilk in auto trans...engine...and gas maybe this month. As you mention...the additive is supposed to be added to a warm engine in new oil and run for at least 5 minutes? Considering the cost...I'll be using a flush in the old oil and changing in new oil and filter...then driving around for an hour or so after adding it.

If you have a higher mileage engine (over 100K)...they recommend changing out the oil filter after so many miles...saving and then re-adding this oil...if you think the filter might be getting clogged....but not putting in new oil which removes the additive.

If I were to test with the data you're getting....I'd test vs the same weight and brand of oil and give the additive a few K miles to deposit itself before testing. And I'd compare GPH after warm up.

* saw your testing protocols after posting this...I just do "cumulative mpg testing"...I try stuff I think might work and see if my mpg gets better....none of that A-B-A stuff for me....