ottawapony

What synthetic oil are all v6 05 mustang owners using. I'm thinking Royal Purple 5w30

oh6vee6

I'm using Amsoil for everything. Engine, Tranny and Rear. No complaints at all.

wolfpup

+1000 royal purple works great, and i also use a K&N oil filter with every oil change

vtmustangs

I'm using the motorcraft synthetic blend and have had no problems

slingshot76

I'm running Amsoil; just put it in a couple of months ago. So far, so good.

beltone

Castrol syntec works great

.boB

I put RP in this time, but only because I had 4 qts of it lying around, and no use for it.

IMO, RP is about the best oil you can get. It's a true PAO synthetic, well engineered, decent price, and easy to come by. BUT, I think it's much more than any street car needs. At $6.50 - $7.00a qt, not a sensible choice.

For a street car, I'd recommend a good priced Group IV "synthetic oil", like Quaker State, Valvoline,or Penzoil. They provide all the protection your street car needs, and a reasonable price.

Unless you can get Mobile 1 at a good price, I would not recommend it.It's also a group IV just like the others; but a lot more expensive. It's a goodoil, just not a good value.

At my next oil change, I'll switch to one of the others.

jwilhelm

Royal Purple all the way through with K&N filters, Jack.

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davesyo

I use mobil 1 in my astro van.The ford dealer does my mustang oil changes because they have this engines for life deal as long as you let them change the oil . It does not cost me anything. According to the dealer they say their oil is a synthetic blend ,otherwise if I were to change it myself I would use mobil 1.

putzlv

I use Mobil 1 here... and have had no problems....