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Old 08-16-2018, 10:25 AM   #21
Pitcher
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1998 SC2
Default Re: Excessive oil consumption

I remember my Dad & BIL putting a Quart of ATF in the Oil to clean out a sludged engine back in the Mid 70's!


That was the Genesis of opening my brain up to experimenting with Additives!

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Old 08-16-2018, 04:20 PM   #22
Eiron
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Default Re: Excessive oil consumption

Quote:
Originally Posted by Sc2Zr2 View Post
im still looking into running rotella t6, but am hesitant to put anything other than the manufacturers recommended 5w-30. don't want to cause anymore damage to any components due to lack of proper lubrication as i do plan to rebuild this engine in the near future.
I understand ....

Quote:
Originally Posted by Sc2Zr2 View Post
as far as running a synthetic oil i may consider trying it out if i get a good deal on something, but at the rate im burning it i may as well just run the $12/gal chevron 5w-30 from Walmart. after rebuild synthetic all the way.
Yes, I was thinking about the high consumption and agree with you. However, instead of either 5W-30 conventional or 5W-xx synthetic, I'd run Chevron Delo or Shell Rotella 15W-40 (T4). These oils use so-called Group II+ base stocks and include the better dual-rated additive packages, so they'll provide better protection than 5W-30 and probably slow consumption a bit in the process. You might find similar benefits from a high-mileage 5W-30, but I'd expect higher consumption and I don't know how the cost compares to Delo or Rotella.

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Old 08-16-2018, 05:46 PM   #23
nealt
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1997 SC2
Default Re: Excessive oil consumption

Burning a quart every 400 miles is a lot... I would go straight to the B-12 application on a warm engine.

This is what I did:
1) Clean spark plug wells
2) Loosen spark plugs on a cold engine
3) "Snug" the plugs back in
4) Start engine, let it warm up, shut it off
5) Drain oil in a clean container (to be reused)
6) Leave the drain plug off and put another container under the drain
7) Remove spark plugs
8) Pour 2-4 oz of B-12 through spark plug holes on a moderately warm engine. Sometimes I mixed the B-12 with PB Blaster Small Engine Tuneup
9) Hand crank or wiggle the serpentine belt to move the cylinders around a little to help the B-12 work in the rings
9) Let it drain out to oil pan
10) Add some more B-12 if it drained out quickly
11) Let it drain out
12) Once cylinders are drained or have waited long enough, put drain plug back on
13) Refill oil with the oil that was just drained
14) If B-12 is still in the cylinders try to get it out by cranking engine without plugs in (disconnect fuel pump or fuel pump relay)
15) Add a teaspoon of oil to each cylinder for lube (however, this will cause hard starting if it gets on plugs)
16) Put plugs back in
17) Reconnect fuel pump or relay if you disconnected it
18) Start up engine.
19) Engine will be EASIER to START if its still WARM, but it may take awhile and sound like crap for a little bit.
20) Take a drive
21) Change oil with new oil/filter or repeat the entire process again for another quick soak

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Old 08-16-2018, 06:01 PM   #24
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Default Re: Excessive oil consumption

After the B-12 soak crank the engine with a towel over to catch liquid B-12 that didn't drain down. Then use compressed air and replace all the air in the cylinder several times over with shop air. Failure to do the last step will cause it to be very difficult to start since the cylinders are super rich. If you cannot do that at least start with the gas peddle pressed to the floor to put it in rich mode. Continue cranking with the gas peddle pressed until it starts to catch. It may be difficult to start.

Don't poor the B-12 directly into a hot engine. The vaporization temp on the B-12 isn't very high and it will just vaporize immediately.

-Robert

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Old 08-17-2018, 10:29 AM   #25
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Default Re: Excessive oil consumption

Step 14, rather than disconnect fuel pump or fuel pump relay, pull the PCM-B fuse from the box under the hood.

Per OldNuc, that disables the fuel injectors and spark (no PCM signal - shuts off everything except the starter, and the battery / oil pressure lights)

Also, weigh down the rag over the spark plug wells, carefully and securely.

If you do it in haste and don't quite catch a corner, there is enough pressure when cranking to blow the rag up and you end up with MMO all over the hood and the walls of your garage. Ask me how I know

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Old 08-17-2018, 10:56 AM   #26
nealt
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Default Re: Excessive oil consumption

If the B-12 does it job, you probably won't have any left in the combustion chambers... it's pretty thin, and once it does it job, it will drain easier and there probably won't be any left on top of the cylinders. Only when I used MMO, did I have problems with it draining out. So you most likely will be able to skip step 14.

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Old 08-17-2018, 11:58 AM   #27
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Default Re: Excessive oil consumption

Quote:
Originally Posted by nealt View Post
If the B-12 does it job, you probably won't have any left in the combustion chambers... it's pretty thin, and once it does it job, it will drain easier and there probably won't be any left on top of the cylinders. Only when I used MMO, did I have problems with it draining out. So you most likely will be able to skip step 14.
Its the vapor that's left inside that causes the issue. There will be small amounts pooled on the top of the piston that maintains the vapor. Just need to blow the vapor out.

-Robert

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Old 08-17-2018, 11:59 AM   #28
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Default Re: Excessive oil consumption

Quote:
Originally Posted by alordofchaos View Post
Step 14, rather than disconnect fuel pump or fuel pump relay, pull the PCM-B fuse from the box under the hood.

Per OldNuc, that disables the fuel injectors and spark (no PCM signal - shuts off everything except the starter, and the battery / oil pressure lights)

Also, weigh down the rag over the spark plug wells, carefully and securely.

If you do it in haste and don't quite catch a corner, there is enough pressure when cranking to blow the rag up and you end up with MMO all over the hood and the walls of your garage. Ask me how I know
Pushing the gas peddle to the floor also disables the injectors. Its the flooded start mode in the PCM.

-Robert

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