What kind of oil did you guys use during the break-in period?

Just use regular 5w-30 I don't see the need to use anything else unless you plan on running synthetic, then use that and only that.

I used generic 10W-30 from Advance Auto. I bought a couple big cases, because I changed it about 8 times in the first 5,000 miles. I went through about 4 filters too. After that, I switched to Mobil 1 10W-30. I figure its best to buy cheap stuff and change it very often during the break-in. I had high and even compression after the break-in.

Corbin

'95 ESI-T
Now with more power and fewer leaks



Gimme fuel...Gimme fire...Gimme that which I desire

Yep, just use regular oil for breakin, but if you want to switch to synthetic, do that at 3000 miles or so. I used Mobil 1 normal 5w-30 for breakin, and after 3k miles, i use Mobil 1 synthetic 5w-30

The mods are correct. You'll want to use regular conventional oil (not synthetic) to help the rings (and other things) in seating properly. 10w30 is good. I tried straight 30w (what I typically use for v8's), but it's too thick for our stock lifters. I don't think they could fully pump up with it (I changed it after the initial 30 mins and they quieted up a lot). After you've changed the oil several times and are above at least 2k miles, then switch to synthetic if you so choose to.

What all 3 said up there. I used cheapy oil and changed frequently. Worked out great.

I always used regular Quaker State 10w-30.

Just get some shitty house brand.. like Autozone 10w30 or 10w40. Youre going to change your oil a lot and there is no sense in wasting money on Mobile 1 5w30.