Motor Oil....What Kind??

Brian*04*GT said:

Sorry!
I did actually search, but didnt find exactly what I was looking for. Believe me, in the old forum I belonged to with my other car, I got sick of seeing new people ask the SAME questions over and over. So I know how you feel. I'll try harder not to repost stuff next time! By the way, if this question comes up a lot, why not add it into one of those FAQ sticky posts?? Just a thought.


Anyway, thanks for the help once again. I've also heard dont use synthetic right from the start. Cant find anything to back that up, but I know I've heard it before. I'll probably go with regular oil for the 1200 mile change, then switch to synthetic at the 3000 mile mark.

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http://www.mobil1.com/index.jsp

quoted from Mobil1.com

Myth
"You should break in your engine with conventional oil, then switch to Mobil 1.

Fact
You can start using Mobil 1 with SuperSyn™ in new vehicles at any time, even in brand-new vehicles. In fact, Mobil 1 with SuperSyn™ is original equipment (it is installed at the factory) in:


Chevrolet Corvette
All Porsche vehicles
Mercedes-Benz AMG vehicles
Dodge Viper
Ford Mustang Cobra R
All Aston Martin cars

One of the myths that persists about Mobil 1 is that new engines require a break-in period with conventional oil. Current engine manufacturing technology does not require this break-in period. As indicated by the decisions of the engineers who design these high-performance cars, Mobil 1 with SuperSyn™ can be used in an engine from the day you drive the car off the showroom floor.

Brian*04*GT said:

Quote:
Originally Posted by hotrodnut
Another which oil thread

Sorry!
I did actually search, but didnt find exactly what I was looking for. Believe me, in the old forum I belonged to with my other car, I got sick of seeing new people ask the SAME questions over and over. So I know how you feel. I'll try harder not to repost stuff next time! By the way, if this question comes up a lot, why not add it into one of those FAQ sticky posts?? Just a thought.


Anyway, thanks for the help once again. I've also heard dont use synthetic right from the start. Cant find anything to back that up, but I know I've heard it before. I'll probably go with regular oil for the 1200 mile change, then switch to synthetic at the 3000 mile mark.

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Hey man, I did not mean to be offensive at all with my comment, I was trying to add humor to this "great debate" on every site I have visited. I appreciate everyone’s oil opinion and do read them all with interest.

As far as using Synthetic right from the start . . . well, that is one debated subject also. I always heard that the engines that had full Synthetic from the factory had dyno time first, may be a myth there too.

I gain my Synthetic use belief from racing 2-stroke engines. Although not the same for sure but the cylinders do get oiled from the mix. The wear is so great on the high reving 2-strokes I would change pistons and rings 1 or 2 times a weekend on occasions and found if I used Synthetic oil to seat in the new parts I would get a lot of blow by past the rings. So I had to have a dino oil mix just for seating in the rings.

I also found that the high wear rate of 2-stroke engines was reduced an incredible amount when I started using full synthetic oils. In the days before I switched to synthetics I was lucky to get a ring to last a couple of heat races and they would need changed after an hour long race. That time was at least tripled and sometimes more after the switch to Synthetic.

Now back to our Mustangs . . . I changed my oil often in my new Mach, I drove it home from the dealer and changed it then even. I found lots of metal too. I changed again at 250 then 500, 1000, and at 2500. I used the 5w20 Motorcraft blend recommened in the manual until the 2500 mark then made the switch to the Motorcraft full Synthetic 5w20. I have always followed a similar cycle of oil changes at break-in time with new cars and have never had a compression or oil usage problem in any of those engines.

My Son bought a '04 GT like you and he followed the same cycle and switched to Motorcraft 5w20 full Synthetic at 2500 miles. He couldn't be happier either with the way his Mustangs runs.

Oh yea, Welcome and good luck with your new GT.

Brian*04*GT said:

Thanks for the help guys. I'll definitely change it out at 1200 miles. I still havent really decided which oil to go with, but I'll probably go with one of the ones mentioned............Mobil1, Amsoil, or Motorcraft. A friend suggested I go with Royal Purple full synthetic. Anyone ever use that, or have any experience with it??

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I Use Royal Purple 5W30 with a K&N Oil Filter and love it. I have had it in for about 3500 miles and plan on changing it @ 6000. It has 400% greater film strength to reduce breakdown, and increases HP and fuel economy. Can't go wrong with this oil.