No. But there is a standardized ASTM test that will definitively show if the oil with the additive makes a difference and the test will quantify the difference. This test eliminates all the myriad of variables present in everyday driving. 1000 miles is irrelevant here since no arbitrary distance will get rid of the tens if not hundreds of variables. They actually get worse at that time frame.Yes, i know. The difference in MPG is hard to tell. But it would be nice to see a before-after test. On a big engine with lots of friction one maybe should see a difference. 1000 Miles and logging the MPG, and then add the LM additve and do again 1000 Miles and lets see the difference.
Hopefully Liqui Moly has run such a test to back up any claims they may be making. They should disclose the results.