We've had many posts in which members have claimed a sometimes drastic increase in oil consumption when changing brands. PP appears especially prominent in these claims.
I don't think I've ever seen this myself, but there are too many members claiming to have seen this for it to be dismissed as myth or mere anecdote.
I wonder why a change in brand of oil might cause any change in oil consumption?
What technical explanation might there be for this?
Higher volatility?
This would bring only a small increase.
Switching from an oil at the thicker end of the grade to one at the thinner end?
Again, not that much of a difference.
What might cause a very noticeable increase in oil consumption when doing no more than changing brands within the same grade?
Is this real? I think it is based upon the number of longtime members who say they've seen it.
The question is how we can explain this in rational terms.
I don't think I've ever seen this myself, but there are too many members claiming to have seen this for it to be dismissed as myth or mere anecdote.
I wonder why a change in brand of oil might cause any change in oil consumption?
What technical explanation might there be for this?
Higher volatility?
This would bring only a small increase.
Switching from an oil at the thicker end of the grade to one at the thinner end?
Again, not that much of a difference.
What might cause a very noticeable increase in oil consumption when doing no more than changing brands within the same grade?
Is this real? I think it is based upon the number of longtime members who say they've seen it.
The question is how we can explain this in rational terms.