40 causes of "Too Much" Oil Consumption - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

NoItsOnlyAV6_ButItRocks · 10-13-2013, 08:41 AM

I came across this very interesting PDF that was published in 2004 by Amsoil as a Tech Bulletin. It has 40 reasons an engine can consume "Too Much" oil. Each of the reasons has a paragraph that explains the how and why to the reason. Seven pages long. Good Reading. I am now much wiser after reading it.

http://www.amsoil.com/techservicesbu...onsumption.pdf

Here are the 40 reasons as listed in the table of contents:
1. External Oil Leaks
2. Front or Rear Main Bearing Seals
3. Worn or Damaged Main Bearings
4. Worn or Damaged Connecting Rod Bearings
5. Worn or Damaged Camshaft Bearings
6. Worn Crankshaft Journals
7. Tapered and Out-of-Round Cylinders
8. Distorted Cylinders
9. Clogged “PCV” Valve
10. Honing Abrasive
11. Worn Ring Grooves
12. Cracked or Broken Ring Lands
13. Worn Valve Stems and Guides
14. Bent or Misaligned Connecting Rods
15. Worn or Improperly Fitted Wrist Pins or the Wrong Pins
16. Wrist Pins Fitted Too Tightly
17. Clogged Oil Passages
18. Unequal Tightening of Main Bearing Bolts or Connecting Rod Bolts
19. Unequal Tightening of Cylinder Head Bolts
20. Dirty Cooling System
21. Dirty Oil
22. Too Much Oil in Crankcase
23. Incorrect Piston Rings for Type of Engine or Type of Service
24. High Engine Vacuum
25. Worn Timing Gears or Chain
26. Piston Rings Fitted with Too Little End Clearance
27. Worn or Broken Piston Rings
28. Piston Rings Stuck in Grooves
29. Late Valve Timing
30. Oil Pressure Too High
31. Oil Viscosity
32. Piston Slap
33. Internal Gasket/Intake Breach
34. Spark Knock
35. Aftermarket Performance Chips and Modifications
36. Lugging Engine
37. Inappropriate Operation of Overdrive
38. Leaking Turbocharger Seal
39. Restricted Air Intake
40. Fuel Dilution

Firefighter · 10-13-2013, 08:58 AM

There are more than a few of those I would never have thought of.

Sent from my DROID RAZR HD using Tapatalk

JohnnyBfromPeoria · 10-13-2013, 12:06 PM

How about #41, best friend's dad forgot to reinstall the oil drain plug after draining out old oil?

I stopped by to see a big note taped to steering wheel: Do NOT Drive. No Oil!

I asked him what happened and he said "Five quarts in, five quarts out, ya know what what I mean, John?" 30 years later we still get a laugh out of that one. He said the worst part was that his wife saw it happen and never let him forget it.

John B.

NoItsOnlyAV6_ButItRocks · 10-13-2013, 12:15 PM

Quote:

Originally Posted by JohnnyBfromPeoria

How about #41, best friend's dad forgot to reinstall the oil drain plug after draining out old oil?

patternpilot · 10-13-2013, 12:29 PM

So with this list, pretty much any and everything will cause oil consumption. I hope we never have to go back to the day when we carried a quart of oil in the trunk.

I had a Harley back in the 70's that the owners manual said normal oil consumption was a quart every 700 miles.

NoItsOnlyAV6_ButItRocks · 10-13-2013, 04:29 PM

Quote:

Originally Posted by patternpilot

...I had a Harley back in the 70's that the owners manual said normal oil consumption was a quart every 700 miles.

A guy once told asked me: "Did you know why Harley's last for decades?"..."It's because they can't hold oil... You constantly have to keep adding it. It assures everything is always well lubricated. It's like a constant fresh oil change."

JohnnyBfromPeoria · 10-14-2013, 01:13 AM

I've owned a couple of vehicles over the years that fit this description. Never a Harley, though, even though I've ridden for 36 years and owned seven bikes. Just never felt like waiting for parts to come in so I could go for a ride.

I kid, I kid.

John B.

10-13-2013, 08:41 AM	#1
NoItsOnlyAV6_ButItRocks Drives: 2010 2LT RS M6 IOM FlwMstr Join Date: May 2013 Location: Woodinville, WA. Posts: 85 View My Garage	40 causes of "Too Much" Oil Consumption I came across this very interesting PDF that was published in 2004 by Amsoil as a Tech Bulletin. It has 40 reasons an engine can consume "Too Much" oil. Each of the reasons has a paragraph that explains the how and why to the reason. Seven pages long. Good Reading. I am now much wiser after reading it. http://www.amsoil.com/techservicesbu...onsumption.pdf Here are the 40 reasons as listed in the table of contents: 1. External Oil Leaks 2. Front or Rear Main Bearing Seals 3. Worn or Damaged Main Bearings 4. Worn or Damaged Connecting Rod Bearings 5. Worn or Damaged Camshaft Bearings 6. Worn Crankshaft Journals 7. Tapered and Out-of-Round Cylinders 8. Distorted Cylinders 9. Clogged “PCV” Valve 10. Honing Abrasive 11. Worn Ring Grooves 12. Cracked or Broken Ring Lands 13. Worn Valve Stems and Guides 14. Bent or Misaligned Connecting Rods 15. Worn or Improperly Fitted Wrist Pins or the Wrong Pins 16. Wrist Pins Fitted Too Tightly 17. Clogged Oil Passages 18. Unequal Tightening of Main Bearing Bolts or Connecting Rod Bolts 19. Unequal Tightening of Cylinder Head Bolts 20. Dirty Cooling System 21. Dirty Oil 22. Too Much Oil in Crankcase 23. Incorrect Piston Rings for Type of Engine or Type of Service 24. High Engine Vacuum 25. Worn Timing Gears or Chain 26. Piston Rings Fitted with Too Little End Clearance 27. Worn or Broken Piston Rings 28. Piston Rings Stuck in Grooves 29. Late Valve Timing 30. Oil Pressure Too High 31. Oil Viscosity 32. Piston Slap 33. Internal Gasket/Intake Breach 34. Spark Knock 35. Aftermarket Performance Chips and Modifications 36. Lugging Engine 37. Inappropriate Operation of Overdrive 38. Leaking Turbocharger Seal 39. Restricted Air Intake 40. Fuel Dilution

10-13-2013, 08:58 AM	#2
Firefighter Drives: Black '13 2SS/RS/1LE w/NPP/NAV Join Date: Oct 2012 Location: Tampa by way of Miami... Posts: 4,934	There are more than a few of those I would never have thought of. Sent from my DROID RAZR HD using Tapatalk __________________ My Build Thread... http://www.camaro5.com/forums/showthread.php?t=285054

10-13-2013, 12:06 PM	#3
JohnnyBfromPeoria Drives: 2012 LS M6, Black Join Date: May 2009 Location: Phoenix, AZ Posts: 2,045	How about #41, best friend's dad forgot to reinstall the oil drain plug after draining out old oil? I stopped by to see a big note taped to steering wheel: Do NOT Drive. No Oil! I asked him what happened and he said "Five quarts in, five quarts out, ya know what what I mean, John?" 30 years later we still get a laugh out of that one. He said the worst part was that his wife saw it happen and never let him forget it. John B. __________________ 12 LS M6, IPF S/C, ASA GT-5 wheels, VMax PTB 1995 Mitsubishi Montero SR 1987 Dodge Raider Turbo Project 1986 Mitsubishi Montero 2.4l FI Transplant

10-13-2013, 12:29 PM	#5
patternpilot Drives: 2012 2SS/RS Join Date: Aug 2011 Location: Tri-Cities WA. Posts: 934 View My Garage	So with this list, pretty much any and everything will cause oil consumption. I hope we never have to go back to the day when we carried a quart of oil in the trunk. I had a Harley back in the 70's that the owners manual said normal oil consumption was a quart every 700 miles. __________________ There's more to life than gas mileage LS3, Whipple, Custom Comp Cam, springs, pushrods, timing set, CAI intake, Apex cold air scoop, Doug Thorley TRI-Y headers, Billet Custom Products baffled Valve covers, Mighty Mouse Catch can, ADM FPCM, ZL1 fuel pump, MSD boost-a-pump, Hex Vent hood vents, ProSport gauges(fuel pressure, AFR, Boost), Corsa, 100 cell Cats. Jannetty remote tuned, Pfadt trailing arms, all parts user installed. No Dyno yet. Manual trans. 3.45 gears.

10-14-2013, 01:13 AM	#7
JohnnyBfromPeoria Drives: 2012 LS M6, Black Join Date: May 2009 Location: Phoenix, AZ Posts: 2,045	I've owned a couple of vehicles over the years that fit this description. Never a Harley, though, even though I've ridden for 36 years and owned seven bikes. Just never felt like waiting for parts to come in so I could go for a ride. I kid, I kid. John B.