Hi guys! Oil Brand Question

[dirty]

Hi mi name is Dirk and i live in Mexico city i have a oil change shop.
I was wondering if somebody could help me to know more about oil brands.
I sell Motul Synthetic only, Liqui Moly Synthetic only, Quaker State (made in Mexico), Pennzoil, Chevron, Castrol, AC Delco (made in Mexico), Mobil, Exxon, 76 Synthetic only, and i sell only Fram and Mann oil filters.
What do you know about this brands?
And someone offered me Coastal. Is it good?
Over here Wal Mart and such brands are not good at all.
Also we don´t have Autozone, Pep Boys or that kind of stores.
A Synthetic qt. costs 11 to 12US$
and Mineral oil about 4 to 5 US$
Redline and Royal Purple is hard to find because there is no Representation in Mexico.
Thanx a lot for the help.

 

[JustinH]

That really depends on what your clients demand.

If they have exotic sports cars, or turbo, or diesel imports, then they will require synthetic oils.

All other cars will be just fine with any gf4 spec'ed oil.