rodtod11

I have a 2008 Mustang with the V-6. 20K miles is all. Recently I took my Harley in for an oil change. It has the 96 ci engine. It was only $20 to go to synthetic oil so I said, why not. I thought the only benefit would be a longer period between changes. As soon as I got back on the road I was pleasantly surprised to find it had more power adn just ran better then with standard oil. When I asked other Harley owners they said the same , synthetic was better for them too. So, would I see the same effect in my Mustang V-6?

tigercrazy718

some say its in your head. i just put royal purple in mine for the first time and it MAYBE seems more powerful. its kind of hard for me to tell. and i havent gone through a whole tank of gas yet so im not sure if im getting better mileage, although for where i am in the tank it seems that i might be.

Shelby350Mike

Synthetic Oil is good no matter what. More durable, and a little power increase.

However, Royal Purple is really good to swap into your rear and trans, heard it makes a huge difference from my friend.

Nuke

My car runs faster after I wash it, too.

Synthetic will allow longer oil change frequencies. I change my GT's oil at 8k - 10k miles, depending on how hard I run the car, conditions, etc. I've also had many cars that went well over 200,000 miles on dino oil changed every 3k-4k miles. I use synthetic blend changed at 5k-6k miles in my g/f's '06 V6. Take your pick. Performance gains due to synthetic are minor. IMO, any "noticeable" gain is a placebo effect.

JimC

I usually go with a blend but once in awhile the shop is out of the blend and gives me the full synthetic (Mobil 1). I've never noticed a difference in the car with the full synthetic vs the blend.

Alec

I use synthetics. Call it peace of mind or cheap insurance, it sure as hell can't hurt

JimC

183,000 miles using the 50/50 blend here with full synthetic only when they are out of the blend - doesn't seem to have mattered on mine. Not saying that the synthetic hurts, just that I don't think the blend has hurt either.

arabianobsession

Synthetics can withstand temperature changes MUCH better than conventional oils, it's great to use where temperatures either get extremely cold or extremely hot-or both (Gotta love Wisconsin weather, where one week it's 90, the next, 45). I use a full synthetic in the Camry (it's required) and a half synthetic in the Maxima and Mustang, but once the 4.6 gets dropped in the Mustang, it's going to full synthetic.

stags

Synthetics, yes. but avoid royal purple like the plague... I put it in my transmission and within 100 miles it was impossible to shift into third without grinding. Swapped in a generic cheap mercon V fluid from Autozone and it was slightly better but still problematic. Took it to the dealership and they told me the third gear syncro was toast and I was going to have to replace it, which would have cost a buttload of $$$. Instead, I went on the advice of some guys on here and put Amsoil ATF in. The tranny has grinded twice in the last 2 months in any gear, instead of every goddamned shift.

Moral of the story- if youre going to use a synthetic, go straight to the good stuff. Dont almost kill your car like I did

arabianobsession

^Not sure why you had so many problems with RP, I use it extensively and it's actually a huge improvement over factory fluid.