10hp increase from synthetics?

I really dont find it all that hard to believe...

if you look at hydrodynamics (the way liquid flows) replacing a luquid with a less viscus liquid will lower resistance (but may up friction),

but this is more an issue of oil weights than being synthetic or not...

and in extreme conditions this may cause more harm than good....

I.E. really hot or cold, really hot oil will become too light and fail to lubricate properly, thus causing engine dammage.... really cold if the oil is too thick, it wont flow, and dammage will follow...

but I believe this 10 hp increase will be at the expense of some engine/driveline part.

Well, pick up and flip through the latest Sport Truck issue. They have multipel pictures of all of there swap out. And it's NOT just the OIL in the crank case (?), they did the transmission fluids, etc. AND they dyno'ed it... They also have a sidebar asking why some ppl seem to be anti-synthetics, and the answer was they used to have problems, and the (synthetic) industry hasn't overcome yet the PERCEPTION those early problems caused even though today's stuff is great (obviously, I am paraphrasing).

I am just wondering if any of you have done this.

Of course, with forums it's hard to tell too, theres been a lot of PRESS lately on advertising marketing companies hiring people to "get known" in forums to then plug product. Apparently, it's now now SOP for a lot of product that has huge Net followings. (Cars, omputer equipment, etc)

I wouldnt say that you never have to do it again......it just changes your normal intervals. Like when Im due my first oil change in about 600 miles, I am switching to AMSOIL Pure Synthetic. It was $60 for oil and filter, but its guaranteed for 25,000 miles. Personally Im not gonna go that long on the first one......maybe 15,000 then cut the filter open to have a look inside my engine. And if all is well, I will go 25,000 the next time.

Synthetic lubricants are signigicantly more expensive, but they offer FAR BETTER wear protection on your critical engine and transmission parts. Any time you reduce friction and wear, you are opening that engine up to more power. If you change oil, transmission and rear end fluid to FULLY Synthetic, I wouldnt be at all suprised to see horsepower gains. Less Friction = MORE POWER.

One thing to note also. Oils have been altered significantly in recent years. Used to, oil companies put Zinc Additives in their oil to act as a high pressure lubricant. But the government has stepped in recently and forced oil companies to cut back on Zinc. With this cut back, using conventional oils arent as good for your vehicle as they used to be. This can be very noticeable on engines with flat tappet cams and lifters. Many times they are damaged in the break in process simply because of the oil. However, fully synthetic oils such as AMSOIL are exempt from the above government standard because they are rated for higher mileages. I forgot the exact mileage amount, but if it is rated for a certain mileage, companies are still allowed to use the Zinc additives for wear protection. Another oil that is exempt would be Diesel oil, such as Shell Rotella. That is why synthetics such as AMSOIL are rated for gasoline or diesel engines.

I hope this all makes sense. If any of you are interested here is the website that I purchase my AMSOIL products from
www.lubedealer.com/lkn