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This subject comes up all the time. I would at least wait a few thousand miles. I had my first oil change done around 1200 and will get the next one done at 3k, probably next week, with regular oil. Then at the next oil change, 6k, I will switch to Mobil 1.
 

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I have already switched. I now have 2600 miles.
 

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I was told not to go to synthetic until 10K miles. It does seem interesting to me that the EVO comes shipped with Mobil 1 though.
 

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thingy

why is everyone in a quandry over synthetic, porche , audi, bmw, corvettes all come with it in the car from the factory, years ago we used a conventional oil because machineing tolerances were far from what they can produce today, I ve had mobil 1 in since 1000 miles, only reason it wasent in sooner ,why throw away new oil, :wink:
 

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Ken,

Same here. I'm with you.. There are enough wives tales in performance automobiles without adding more to it.

IMHO: When the break in is done, you can switch to synthetic. only reason not to before is 'why waste good oil'.

If someone can give something that passes muster on the scientific method as to why not, then I am all ears.
 

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FS: Brand new Greddy Turbo timer 75 + shipping

Just changed to Mobil 1 yesterday at 5000km along with the proper filter (with the Jap. writing on it). Engine reved freely with greater ease immediatly. Power may even be a bit better or perhaps that is just placebo talking. One thing for sure is that my warm idle is much smoother. With stock oil car would idle at 400-450 with the occasional sputter which could easly be felt with the stereo cranked. Post mobil 1, warm idle is at exactly 500, sounds consistent as purrs like a kitten (or should a say a tiger in kittens clothing). So far (its only been 2 days) I give two big thumbs up to Mobil 1.
 

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IT DOESN'T MATTER.

This does come up all the time and the whole answer is on Mobil 1's website itself

http://www.mobil1.com/why/myths.jsp


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.
 

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I did my 1st change at 1200 with Valvoline conventional and swapped to Amsoil 5W30 synthetic at 4100 miles. Can't say I notice any difference either way TBH.
 

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Transfusion of Mobile1 at 1200 miles. I will continue with Mobile1 and will follow the owners manual recommended intervals.
 

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I am switching at the 6k mark. The tech at Subaru of Dallas said that you could switch at any time.
 
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