17 replies to this topic

[us1champ]

I have break in oil in the motor right now might have 100 miles or so on it.

 

should i or does it matter if i run say 500 miles then dump it or get rid of it now and put it what i normally run?

[AvantSrt8]

I would ask who assembled it for you, but at least 500 miles is the norm.

You should also get a recommendation as to weight/type of oil from the builder.
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[Adanac Charger]

IMO, you can't change it too early or too often on a new build.

 

I did my 4th change at 500 miles.

 

Run whatever oil you want, but I avoid synthetic for about 5,000.

[Goehner]

I changed the oil after it got up to running temp, then 100 miles, then 500 miles. But I break shit, so you may not want to ready what I type, ever.

[Blue Blur]

Change the filter and go another 150.

[us1champ]

well i was the builder

it is dropins and rods ect.

[Cam]

I changed the oil after it got up to running temp, then 100 miles, then 500 miles. But I break shit, so you may not want to ready what I type, ever.

That's my preference. I start them, let it come up to temp and change the oil and filter. Go out, do my break in then again. Fortunately I have plenty of hills around me for lots high rpm downshifting. I'll usually get around 50 miles of that high vacuum nonsense over and done with then let the customer go 500 to a 1000 miles then switch to normal intervals. And if I didn't need to say it I will anyhow, that's with non-synthetic. After that and if the ride is where I can check her out, depending on if I can smell any blow-by it goes to full synthetic.

Another words Chris, change your damn oil ya cheap skate

[us1champ]

10-4

 

go do one more oil change with conventional then? then do synthetic?

[Blue Blur]

You guys got me thinking I need to go back to Dino oil for another 500 miles.

[Hemi57]

Back in the day.... did a cam break in then change oil & filter, run for 100 miles change oil/filter, run 500 miles change oil/filter.

[Cam]

10-4

go do one more oil change with conventional then? then do synthetic?

Only you and your catch can will know when it's time.

[SRTROB]

If one were to start using the synthetic to soon , is it to late to go back to the conventional oil ? 

[Cam]

No but it takes a few oil changes and much longer to achieve results. You can expedite this process by adding a quart of diesel fuel one heat cycle before the oil change. That means run the car a few miles and no beating up on her. I've done this several times when there's been issues getting the rings to seat. If you think that's your issue, do a leak down and keep the results. With each oil change do it again to see if your making any progress. This is assuming everything else is in good shape.

There was a thread a couple years back titled something like do I need a PCv or how important is a PCV, I don't remember. But in that thread I posted pictures of cleaning out the engine using deisel fuel and how effective it was.

[Hemi57]

Corvettes come from the factory with synthetic oil.... Cam is right on with the diesel fuel... used it back in the day.

[Cam]

Ya I know I've never had a good argument about the factory stuff. I will say they have thier shit together on material selection and cylinder prep though. And remind everyone that most every SRT motor I know of when new would eat a quart every thousand miles, so whatever that means to you take it for what it's worth.

[Hemi57]

I was always told by engine builders that you need to break in the cam (2500 rpm - varied), change oil/filter, run 100 miles change oil/filter and the 500 miles to remove the cross hatch and seat the rings. Change oil/filter and your good to go. With synthetics it just takes longer to seat the rings.

[Cam]

That's not needed for roller lifters. In my opinion, break the fucker in the way you want it to run. Exception being boost. Right off the bat I take them up to high rpm easy, then engine brake it back down. That creates high vacuum which forces the rings into the cylinder and wears them in quicker.

[Hemi57]

Cam... That was back in the day. I have not done real engine in years.

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