|
It took about 6 weeks. I alternated between the two brands to allow for environmental issues. In two days I would burn 20 gallons from a tank and then refill with the other brand. It was done in the March / April time frame to avoid the switch to summer gas which is usually in the last half of May. The same daily drive, no changes like filters or oil, but even if I had both would have seen the effect.
|