I've got a '96 Lincoln Town Car. What are the thoughts on using dedicated Pennzoil Mercon V? What about Mobil 1's new formula (charcoal colored bottle) which seems to carry approval for most every car? Audi, BMW, Mercedes and all Ford Mercon applications approved. Pennzoil is synthetic blend but dedicated. Mobil 1 is multi-use but full synthetic. Which is better in the Lincoln. The car only has 65,000 miles on it but the fluid could be original.