DougFL

I personally use only Amsoil 0W20 fully synthetic. Lots of good synthetics out there: Amsoil, Royal Purple, Mobile 1, etc...

Route 99

I use Motorcraft 5W-20 full synthetic motor oil.

05SatinSilverGT

I thought Motorcraft was synthetic BLEND? That's what I use anyhow, that & a Motorcraft FL-820S filter.

Nuke

You can get both the Motorcraft blend and full syn.

05SatinSilverGT

Guess ya learn something new everyday, I may have to switch over then.

Silver0911

OEM 5w20, motorcraft filter.

W1ldcat

5-20 Mobil 1 with a Motorcraft filter. I change it every fall before I put it up, once a year. I only average 1000mi a year. Doesn't seem like much, but with my back I can barly get into it with the top up some days. Those miles are savored.

Mikes_BLK_GT

Going to be switching over to amsoil signature series just haven't decided on whether I want to go 0W20 or 5W30 yet.

georgevargas

This may sound like a silly question but I'm a bit of a newbie. Advance Auto Parts is selling 10 quarts of Mobile Super Synthetic 5w-30 for $30 if you enter this code "ES123" at check out. Thats $3 a quart and a hard deal to pass up BUT is this the wrong oil to use in my 2007 Mustang GT? I know Mobile 1 is the better option but what does that mean?

And Walmart is selling a 5 quart jug of G-Oil 5W-30 Bio-Synthetic Motor Oil (never heard of it) for $26 and a $20 mail in rebate cuts it down to $6. At just over $1 a quart that's a really tough deal to pass up BUT once again is this the WRONG oil to use. Will these oils cause damage to my engine or are we just talking about a more frequent oil change? Using a baseline of an oil change every 3K miles versus Mobile 1 which claims 15K between changes, not counting time (which we know is money) the cost of buying 2 cases of either of these seems to balance out if an oil change is need every 3K miles.

Suggestions?

http://shop.advanceautoparts.com/web...=33-77978519-2

http://www.walmart.com/ip/G-Oil-5W-3...551996&veh=aff

georgevargas

Theoretically, doesn't that mean that if you change the oil filter frequently (maybe once a month) the oil will always be clean and never need changing?