This is getting rediculous. Do you think Mitsubishi engineers would build such a high performance engine and **** up on what oil to use? Please. Now ask yourself what sense does that make? None. Exactly! Mitsu engineers would know better than to use something that would damge or cause excessive wear wouldn't you think?

 

FYI, Shiv from Vishnu has observed significant increases in HP on his dyno in cars that have been broken in on conventional oil (although he admits to having a small sample number). The car's don't burn as much oil either. Well here's the link:
https://www.evolutionm.net/forums/sh...l&pagenumber=3

Here's a thought... Since friction is required to seat the rings (meaning wear them in under normal cylinder pressure), wouldn't using synthetic at break-in just extend the break-in period? Maybe instead of breaking in fully at 1000 miles on conventional oil, you would have to run 5000-1000 to get full sealing and decreased blow-by?

I agree, TRD, WalMart is money

 

Interesting that this thread popped back up - I was just wondering how doing a synthetic oil break-in might have affected my car. Mostly this came to mind because I was noticing that at 7k miles my car has finally lost the "tight" feeling of a new engine.

I have no data to back this up, but it seems more comfortable revving and my butt dyno thinks I've picked up some speed.

 

stvbreal: Just to play devil's advocate...Chevy would never design a gas tank that catches fire during side impacts. That would be stupid. Besides, they test that stuff before it ever reaches market

 

So you call U.S. Customer Service and talk to someone who thinks compression ratio is how firm the seats are and claim a victory for yourself. Why don't you find someone in Japan who worked on the engine design, and ask them. So I guess the manufacturers of Vipers, Corvettes, Porsche Turbos (last time I checked, their engines experienced boost), and most other high performance cars are all idiots and should have come to you for engine oil advice. HA I think not. Run what you want, but I think I'll keep my warranty thank you.

 

Damn, we couldn't let this thing just die?

The rings are not direct lubricated and I don't care what oil you put in there the will seat in the cylinder. The use of Mobil 1 would have changed the way the cylinder was finish honed.

Just leave the damn Mobil 1 alone and drive the thing!

 

i plan on it

 

just thought this bit of information would be good for all those that think that the synthetic was the problem here.

Federal Mogul Corporation, a manufacturer of engine bearings, pistons, connecting rods and other engine parts, studied over 7,000 case histories of bearing distress and engine failure and never found engine oil to be the cause of a failure. Dirt, the number one cause of engine failure, was found to be responsible for 43.4% of failures, and insufficient lubrication, the second most common cause of failure, was responsible for 16.6% of failures. Insufficient lubrication is the general term used when not enough oil gets through to the engine to lubricate it (lack of oil volume).

 

Guys guys, Its all good. Yes it right to have normal oil in any new engine for the first 5000 miles I agree. I was even surprized when i got my EVO??? My father is an Italian guy who raced on F1 cars for years and let me tell you one thing, when he buys a car (none turbo) he pushes on the gas all the way from day one. He told me just use your brain if you know where to change gears just in time it wont hurt the car. All new engines are turned on in the Manifacture for some time ( they simply test them) however, he said That i should be carful with my EVO since it is a turbo car. Just to let my Turbo brake in, not the engine. The engine is strong ready to go from day one. Companies like Honda nad MMC know that there are some weired *** drivers that they are going to run to red line from day one( like my father) so they almost make them ready to go. Use what the MMC recommands, Mobil 1. By the way it is Mobil 1 field from day one. You can tell by the oil thickness and color

 

Yeah, and a TV network would never plant an explosive charge on the gas tank to ensure it blew up when the truck was hit on their TV special. Besides, there has never been a case of journalists bending the truth to get ratings.