Just for a note here, we can't buy the 'HM' versions of M1 in Canada at all - it's not sold up here.
M1 labels their regular 10W-30 oil as 'for higher mileage vehicles', but it's NOT actually 'M1 HM' - it's just 10W-30 M1.
Results are decemt - on a high-mileage, higher-performance engine, I wouldn't worry about a bit of consumption - have you heard about how much oil some BMW M-cars consume?
M1 labels their regular 10W-30 oil as 'for higher mileage vehicles', but it's NOT actually 'M1 HM' - it's just 10W-30 M1.
Results are decemt - on a high-mileage, higher-performance engine, I wouldn't worry about a bit of consumption - have you heard about how much oil some BMW M-cars consume?