LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Very thin/contaminated oil?

Thread Tools
 
Search this Thread
 
Old Dec 3, 2012 | 12:43 PM
  #1  
VandykeT/A's Avatar
Thread Starter
10 Second Club
10 Year Member
 
Joined: Jan 2010
Posts: 2,317
Likes: 20
From: Hurley, VA
Default Very thin/contaminated oil?

A friend of mine bought a 97 Z28 M6 car with 89k on it. The car has sat for the last 2 years. Well he hasn't driven the car other than around the house since he hasn't tagged it. He bought a set of longtubes for it and when we pulled the valve covers we noticed the oil felt very thin and I would almost say smelled slightly of gas. Say it is fuel in the oil, what would have caused it? The car runs great doesn't smoke and sound fine. Not even a SES light. There wasn't any build up inside the heads at all but then again I suppose gas would do that. He was considering doing a cam swap and before we tear into it I wanted to make sure we got this problem fixed and all the storys of spun bearings doesn't make us feel any better about it.
Reply
Old Dec 3, 2012 | 01:10 PM
  #2  
SS RRR's Avatar
Village Troll
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2002
Posts: 11,111
Likes: 598
From: Jackstandican
Default

Perhaps a dumb question, but was the oil changed and you are referring to fresh oil being contaminated?
Reply
Old Dec 3, 2012 | 02:07 PM
  #3  
VandykeT/A's Avatar
Thread Starter
10 Second Club
10 Year Member
 
Joined: Jan 2010
Posts: 2,317
Likes: 20
From: Hurley, VA
Default

No, the 2 year old oil. Is it possible an injector leaked slightly over time and then drained down by the rings? The oil level isn't over full or anything either. Just thin.
Reply
Old Dec 3, 2012 | 04:59 PM
  #4  
KFtransam's Avatar
Launching!
 
Joined: Apr 2012
Posts: 233
Likes: 0
From: Crown point, IN
Default

This is actually just a couple posts down the list

https://ls1tech.com/forums/lt1-lt4-m...n-problem.html
Reply
Old Dec 3, 2012 | 05:02 PM
  #5  
turtle93's Avatar
On The Tree
 
Joined: Apr 2009
Posts: 131
Likes: 0
From: jacksonville ar
Default

I would never run a car with oil that old it dosnt cost much to change it
Reply
Old Dec 3, 2012 | 05:30 PM
  #6  
SS RRR's Avatar
Village Troll
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2002
Posts: 11,111
Likes: 598
From: Jackstandican
Default

Change the oil, run to operating temp and then report results.
Reply




All times are GMT -5. The time now is 08:40 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE