But is pre-filling your oil filter now outdated advice? If you're changing your own oil flter, standard advice has been to pre-fill it with new oil.

Machine-washable fabric pre-filter; This is a very simple example of an air purifier, with no app support, visual display, or automatic detection – but at this price point, ...

As we mentioned, this should not be of any great surprise to Hemmings readers. But at least now we have numbers to back up ...