Oil recommendations wanted from a n00b.

[ecktt]

I've got an JDM Mitsubishi Evolution 7 with a 4G63T (2l twin CAM turbo charged)in it, nearing 100K miles and I live in the tropics (19C-36C). The engine runs great and I've used mostly Mobil 1 10w30 in it. Used Royal Purple 10w30 once and the engine burnt it up in 2000 miles.

Anyway, I decided to rebuild the engine with a 4G64 block, my 4G63T head and a BC stroker kit in the interest of reliability and more power while keeping it a daily driver (500Km a week with mixed driving mostly highway and Track time maybe 2 times a year). I'm hopping for 500whp.

From what I have read, new cars just use the regular oil for break in and change it at 1000Km. Some oil manufacture suggest normal petroleum oil for a 1000Km break in and then a flush and switch to synthetic. Royal purple has a break in oil! A few tuning sites suggest a dyno oil for the first 30 minutes and then switch to 20w50 synthetic.

I'm not partial to any brand but Amsoil seem to be popping up as the best in various forums.

I'd like to know what oil would be best suited for short term break-in, long term break-in and regular use. Also, what break in process/oil combo would be the optimal.

 

[Audi Junkie]

Valvoline makes a good 20w-50 synth, also a racing 20w-50 synth.

 

[Hemi426]

Brad Penn makes a 30 wt. break-in oil plus a whole array of petro-based and synthetic-based racing oils. Good oil!

 

[aquariuscsm]

How about RP XPR 20W50?

 

[askani79705]

Motorcraft 5w50

 

[sangyup81]

What's available in Trinidad?

 

[stockrex]

any major brand syn at the weight you need will suffice,
why waste your money on colored grape juice (rp)

 

[ecktt]

Valvoline, Castrol, Mobil 1, Shaffers, Royal Purple, Shell, Amsoil, Red Line, Kendall. There are others that I just cant remember or are just the oem oils (and so are to numerous to list).

I'd like to go with a Fully synthetic as far as possible.

 

[mechtech2]

It is tough to rebuild an engine with as close tolerances as the factory. Good luck approaching the cylinder bore finish!

500-1000 miles is about as far as I'd go with a non rebuilt non factory high HP engine, for the first oil change.
A break in oil like the Brad Penn stuff is wise. Do you have roller cams? Good if you do!
A full synthetic is mandatory when you start driving it hard.