Mixing oil makes - davo
My 106,000 mile Accord VTEC uses oil when driven regularly above 4,000 rpm, have been topping up with Mobil 1, but will it do any harm to use another fully synthetic brand such as Halfords which are quite a bit cheaper?

Mixing oil makes - Bob the builder
The quick answer is no, it won't.
Mixing oil makes - davo
Thanks.