Engine break in question
RL Community Team
Rennlist Member
Rennlist Member
Joined: Oct 2003
Posts: 7,882
Likes: 876
My recipe: I kept it under 4500RPM for the first 100 miles; I drove the car for 100 miles with dino oil, then changed the filter and oil with dino oil again, ran for 500 or so more (which included 1 race going to redline often!) miles, then changed to synthetic and ran several more races. The engine has not blown up, so it has worked thus far!
Nordschleife Master
Joined: Dec 2001
Posts: 8,305
Likes: 16
From: Kingston, NY
You want to get cylinder pressure into the engine to push the rings against the cylinder wall to wear them in. After the initial startup with new camshafts, this is the second most important piece. To accomplish this, you need to load the engine. I would run the car moderately, and I'd use all of the rev range (to redline) but not full throttle. Sometimes the engines break in easily, other times they may show signs of smoking when cold. I use this as a guide as to when to switch over to synthetic oil.
Most of the engines I do are broken in on the dyno as Tom said.
Most of the engines I do are broken in on the dyno as Tom said.
