I bought two Bosch Distance Plus (D3330 size) filters for my Toyota Avalon. The literature with them claims 99.9% efficiency and that this series filter can hold a load of 29.1 grams of dirt. What are your opinions about these filters? Good, bad, indifferent? They are close in price to Mobil's best ones at the Pep Boys. I am thinking of using each for more than one oil change for convenience.