Deeavi

iTrader: (16)

Patman is right. Oil analysis is a good way ot know if you are running the right oil! But if the engine is not built with proper prep and clearences, it is going to use oil. I am an ASE Cerified Master Engine machinist and I know if you dont prep your cylinder walls properly, or if your valve guides and seals are not up to the task, you are going to have problems.

hugger427

iTrader: (9)

I'm going with a different oil weight to see if that helps. MTI just told me these engines use oil. What's interesting is that the car does not smoke at start-up. In fact I've done WOT in front of people to see if they notice smoke and they all said no.

I have AMW's catch can so I'm sure it's not PVC related...how can it determine what the problem is...complete engine tear down???

Ron

Deeavi

iTrader: (16)

You should ask MTI why they say that the engine uses oil. Get them to give you a definite answer! Did they build it/install it?

robertbartsch

For some unknown reason, synthetics turn black much faster than non-synthetics. I have always been somewhat alarmed by this - to me, it is sort of scary.

Chances are, if you have a sticker on the car it was last changed at Jiffy Lube or a competitor and propbably is not synthetic. Since they usually indiate the miles at the date of change you can try to guage it by how black the oil is.

I would not loose sleep over it, however. With GM cars, your rear view mirror will probably fall off in your hands, your seats will tear and your AC will blow hot before your engine needs new bearings as a result of using non-synthetic engine oils.

Now piston slap is another story!!!

hugger427

iTrader: (9)

they built it but did not install...i'll call them them now. BTW, just went out and looked at my notes on the garage wall. Turns out it's used 1.5 qts in 600 miles

Deeavi

iTrader: (16)

I don't care what they say, somthing is not right! I know it is frustrating to have to take it in and get it checked, but I think they need to run a compression check, then pull the heads, check the valve guides and seals. Also check the pistons for side play. They may have to pull it down and check cylinder wall clearance and rings. Ther is definitely a problem somewhere!
Let me know how it goes!

I am going to build one of those engines in the near future, but I believe I will get my block from LS1 Speed. I know Tom and he is a good guy and they stand behind their stuff!

hugger427

iTrader: (9)

Just got off the phone with MTI...told them my car was using approximatly 3 qts of oil every 1000 miles. Wayne is going to talk to Jason and get back with me. I'll keep you posted.

NastySSoo

Ive seen a lot of people with stock LS1s(bolt ons only) Burn a quart every 500 miles if they spin it up and race it a lot. I mean a lot of guys! Mine burns no more since my H/C install than it did before. Ive also had piston slap at start-up for probably 1 1/2 years and hundreds of passes. Its LS1s. I live with it, my car runs flawlessly, and it hauls ***!!

01Z0H6

iTrader: (63)

I too run the 5W30 ( Mobil 1 ) w/ Mobil 1 oil filter.
Have ever since the car was new. After many mod's ( bolt on's ) & 140K my car still run's very strong & burns maybe 1 quart Q 6K.
These LS1's are great engines..

LS1LT1

iTrader: (16)

I use Mobil 1 10W-30 year round (NJ) in my 'very limited use' LS1, I would consider the 0W-40 though.

Cheatin' Chad

iTrader: (3)

I use Redline 10w30 or 10w40 in all of my vehicles

From what I can tell my T/A uses no oil.Absolutely no problem with my GTP or Honda motorcycle either.

I even use Redline in my snowblower,lawnmower,and compressor

Air21

my womans T/A burns 3+ quarts every 3,000 miles, every time its time for her to change it she tells me that the oil light is on. Its three quarts low. Should i call the dealer or will they just blow smoke up my ***?

SnakeKiller

iTrader: (7)

I'd keep a closer eye on that thing, and not let it get 3 quarts low. Running 3 quarts low isn't going to help your oil consumption problem get any better.

hugger427

iTrader: (9)

good advice

mattf2

For the guy who was talking about the road racing cars spinning bearings:

I think this is how the story went.

There was something out a few years ago about LS1's at Bragg Smith(?) that were dying. The GM engineers found that during hard right turns, the oil was sloshing around and the oil pump went dry. The fix was to always put at least 6 quarts into the engine. I hope this helps.

ZoDDy

He He Scary? It means that the oil working..

Patman

Exactly! And anyone who is familiar with diesels also knows that they turn their oil black almost instantly, but yet the oil is still good obviously. (what would you do if you owned a diesel Robert Bartsh, change it every morning?)

TTtop

iTrader: (6)

Since guys are still asking about oil...ttt

What about making a sticky post for oil?

APeteSS

Castrol Syntec IS a blend, Mobil 1 is the only pure synthetic I'm sure about

Cheatin' Chad

iTrader: (3)

Redline is a synthetic. Certain types of castrol are synthetic. Amsoil to the best of my knowledge is synthetic. Motul,Maxima and quite a few others as well.