stunna p

iTrader: (4)

Do I use conventional oil instead of full syn to break in new heads/ cam? And do I use assembly lube on the cam bearings? My first ls build....lol

Sales4@Texas-Speed

iTrader: (4)

There is no specific break in oil for a heads cam swap. We always coat the cam in oil before it goes in the motor. For break in all you need to do is make sure the springs get heat cycled once or twice. We don't use synthetic oils on these motors, we prefer a standard oil because it provides better lubrication for these types of motors.

redtail2426

iTrader: (10)

yeah no assembly lube on the cam,just regular motor oil on it before you put it in.I laugh when i see roller cams going into motors with all kinds of red assembly lube.All that crap does is stick inside your motor

BrntWS6

iTrader: (7)

id put assemply lube on just the rocker tips and ends of the pushrods but thats probably it

Zmg00camaross

iTrader: (11)

You want to explain at all on the reasoning or evidence you think standard oil lubricates better than a synthetic in "these types of motors". But OP oil on the cam and heatcycles on the springs is a fine way of breaking in your new parts. O and probly 500 miles of break in on that new clutch going in Its difficult to do for me.

Sales4@Texas-Speed

iTrader: (4)

I am sorry my wording was incorrect. We prefer standard oils, especially for break-in periods, over synthetic oil because it allows the motor to wear in correctly. Synthetic oils actually provide so much lubrication that brand new motors will not see the correct type of wear to break in properly. For this reason we recommend using regular oils until at least a few thousand miles are put on a new motor.

Zmg00camaross

iTrader: (11)

Thanks for clearing that up. Thought thats what you ment to say.

98BlackTransAm

+1. not disagreeing with you, just looking to be educated. i've always used synthetic oil on LS1's. bad idea?

Zmg00camaross

iTrader: (11)

Synthetic is great to use. John and myself would recommend a standard dino oil for breaking of new engine parts new engines and such. which he explain in his second post.

Zmg00camaross

iTrader: (11)

This is a good idea though which I would do.

Bramlok

iTrader: (7)

What about Corvettes that have come with factory fill Mobil 1 for a long time now and so do the 5th Gen Camaros?

BrntWS6

iTrader: (7)

^^good point

joecar

Mobil 1, for example, claims on its website that engine break in works just fine on synthetic oil.

[ of course, it is not cost effective since it will be thrown away in a very short number of miles ]

Sales4@Texas-Speed

iTrader: (4)

That is true, but like I said WE prefer to use non synthetic oils for brand new motors. If GM chooses to use synthetic oils on their brand new motors that is their choice. We are just trying to make sure the motors we provide are broken in correctly so they run at their best. Just because GM does something does that make it right?

LilJayV10

iTrader: (39)

I can see both sides of this argument but GM is wanting their engines to last well past 100,xxx miles I would guess. I would think they would do something a little differently if it would help with engine longevity.

And no, just because GM does something it doesn't make it right.
They put a 7.5 10 bolt in our cars and we all know that ain't right.

Sales4@Texas-Speed

iTrader: (4)

I am not saying to never use synthetic, just not the first few thousand miles on a brand new motor. Hell its probably all marketing anyway. I bet if penzoil payed enough GM would put it in all their cars too.

Marky522

iTrader: (8)

I know its a different car but i was going to make this point also, all Porsche's come factory filled with Synthetic also! FYI, my car currently has Dino in it for break in...

Mark

garygnu

current oils don't have the good stuff in them any more ,removed to help with cat life.there are some oils designed for break in(comp cam),mostly concerning flat tappet use.I was told valvoline racing oil is good for break in also.

LilJayV10

iTrader: (39)

I still think that if dino oil was better car manufacturers would use them. I thought I read something once with roller cams and the way cylinder walls are finished now that synthetic works fine.

It's amazing to me that even now you can't get a explanation of why you should or shouldn't. I mean yeah there are opinions but I am talking about actual facts.

Maybe we need to get Shane on this to kill another internet myth.

Bramlok

iTrader: (7)

I'm not saying you or GM is wrong. I'm just saying there hasn't been a rash of Corvette LS1's wearing out prematurely since they started putting Mobil 1 in them some 14 years ago.

I agree with you though. The only reason I would use a dino oil for break on a new motor (not just heads/cam) is because it will have to be changed sooner. Its cheaper than dumping out expensive synthetic oil just for break in.