Break in Mileage!!

[Zed2k]

After Building my L28 Turbo motor, and now having done 700miles I was wondering what mileage people would goto before converting to a fully synthetic oil, if you search it on the web you get wild ranges of opinions from 500miles -15000 miles what do you guys think!! I have some track time next weekend, but am still running mineral oil and won't be pushing it too hard yet untill I have changed to Synth oil.(mobil 1 motorsport blend)

[jkh280zx]

Zed2k,

See: http://forums.hybridz.org/showthread.php?t=81791

I followed Grumpy's procedure (L28ET). Changed oil at 700 & 1500 with heavy duty oil. After 3000M, used half&half (2x) to date. After rebuild&break-in, oil is changed at 3000M. Readjusted the valves (solid now) at 700 & 1500 & 3000M; next time 30K, I believe this is recommended but check this out.

Good Luck!

john

[PanzerAce]

I've seen people that say that a break in is needed, I've seen people that say just drive like you would 10k miles down the road, and others that have said that the best break in is to drive it like you stole it. Personally, I would say don't abuse it, and change the oil more frequently than you normally would.

[Zed2k]

Yes I have only taken the engine to 5200rpm good boost and power just a little worried about the turbo using the 15w40 mineral oil all seems good, I think I would like to change to full synthetic at 1000miles as the cam and followers are very good second hand units showing little wear, and are already worn in so it's only the rings and bearings that are really breaking in, I think I noticed the whole thing smooth out at around the 280 mile mark, so going good can't believe how strong it pulls.