Hi all. I noticed a considerable increase in horsepower or accerlation performance as my G35 gets older.

Before I acquired this G, I test drove 8 MT models and 3 AT models, I wanted 6MT in the beginning but settled for AT. MT was too rough like Z and I like tired of driving stick for 15+ years thru Los Angeles traffic.. One particular G, an AT, was super fast, I called it a factory 'freak', once in a while a car is faster, I know some of you might think Im crazy cuz they are all made by machines with high precision. I didn't get it cuz my pink for my old car came late so I sold it late too carmax for down payment and it was gone 5 days later... So I ended up getting another one.

So far I have 8000 miles.

After the true break in period of 1200 whatever so miles my G didn't feel that fast... about 240 hp-ish. Didnt change my oil at this point, went till 4000 miles then got first oil change, to semi-synthetic, feels about 250, slightly faster and smoother and more torque. Then another oil change at 7000 miles with same oil, this time the car feels 280 hp-ish, more more torque! and faster! Faster than the factory freak I drove. At this rate I guess the true potential is really kicking in now. I plan to change to full synthetic mobil 1EP at 10,000 miles, I'm think the true 300 hp will come out at that point.
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2008 G35 journey5at ivory/stone+prem&sportpkg.

 

The VQs are known to have rather long break-in periods.

You still have some time to go, based on the older VQ.

 

i cant wait till break in is over so i can get some decent mpg's