I got my first oil change this morning at 2535 miles.....The guy at Valvoline told me that Ford recommends using FullySynthetic oil in the mustang. What normally cost me about $32.00 for oil change was now $46.00. Did I get the shaft or is this true.

 

interesting. My service advisor said if I use Synthetic Ford will void my warranty. How strange. I plan to use it anyway but much later after 10K or so.

 

Are you serious!

 

I use synthetic and my dealer knows it, on the rare blue moons I take Stella there. All they told me is pick one or the other and don't change it up. Stick with one consistantly.

 

I think factory is synthetic blend, not full synthetic. Anyway, I switched to Mobil 1 @ 7K.

 

I'm really not that concerned about the warranty. I'm sure that if my engine exploded tomorrow, they would have a very tough time proving that it was due to my oil, or something I've done to the car. The warranty has a pretty short lifespan, so I don't plan on kissing up to my dealership in any way. In fact, I don't plan on taking it in ever. I can check fluid levels and brakes, I can grease my door hinges, and I know when to change the oil and flush the radiator.

I just don't feel like coughing up a hundred bucks every 3000 miles...

Ken

 

Do you guys notice perforamance or fuel consumption improvement with Synthetic?
I switched my minivan from recommended 5-30 (Mobil 1) to 5-20 (Mobil 1) and feel slight improvement in acceleration and economy slightly went up (.5 of mile better per gallon).

 

No.