On 25/07/2020 14:49, Tricky Dicky wrote:
I was told that with new cars main agents are obliged to put in whatever is in the manual or originally in the car. Wether you believe that is up for discussion, I a friend who had a particular fondness for Triumph Dolomites in the day and had a battle with his local Lookers BL garage who charged by the quart can for oil despite being told by a mechanic that the oil came out of big drum at the back of the garage.

Richard
,

Worked on the pumps one summer in the mid 60's, often got asked to check
the oil and top it up. We were required to refill empty oil cans from
the bulk tank in the workshop, and try to make sure the customer didn't
see that we didn't have to remove an aluminium tab from them. Castrolite
and XL in those days.