600 Mile Oil Change? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-21-2006, 10:41 PM   #1
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default 600 Mile Oil Change?

This was the first full year I had the choice of two Firebirds to drive.
As a consequence, I only put 2000 miles on one and 600 miles on the other. I just changed the oil on Black Betty cause after a year it was getting dark.

But after a year and only 600 miles the oil in the Formula is not that dark at all.

Should I change the Mobil 15W50 synthetic oil or maybe just change the filter and top up with a fresh liter(quart US).
2000SilverBullet is offline   Reply With Quote
Old 10-21-2006, 11:22 PM   #2
Senior Member
Certified GM nut
 
Join Date: Jul 2004
Location: New York City
Posts: 1,912
Thanks: 0
Thanked 0 Times in 0 Posts
OLDsman105 is on a distinguished road
Default

I'd change it. Then again I put mobil 1 synthetic in my cheerios.
OLDsman105 is offline   Reply With Quote
Old 10-21-2006, 11:26 PM   #3
Senior Member
True Car Nut
 
Join Date: Jan 2006
Location: NEBF:06,07 | NYBF:06,07 | ONBF:06,07 | CNBF:06 & more............
Posts: 8,029
Thanks: 0
Thanked 0 Times in 0 Posts
bandit is on a distinguished road
Default

oil does go bad over time not just miles..

i would change ti every 6 months to a year if your not driving it enuff to put 3,000 miles on it
bandit is offline   Reply With Quote
Old 10-21-2006, 11:31 PM   #4
Junior Member
 
Join Date: Mar 2004
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
harofreak00 is on a distinguished road
Default

im with bandit, change it, i have always heard every 3000 miles or every 3 months

Quote:
So how often should I change my oil?

You can never change your engine oil too frequently. The more you do it, the longer the engine will last. The whole debate about exactly when you change your oil is somewhat of a grey area. Manufacturers tell you every 10,000 miles or so. Your mate with a classic car tells you every 3,000 miles. Ole' Bob with the bad breath who drives a truck tells you he'* never once changed the oil in his car. Fact is, large quantities of water are produced by the normal combustion process and, depending on engine wear, some of it gets into the crank case. If you have a good crank case breathing system it gets removed from there PDQ, but even so, in cold weather a lot of condensation will take place. This is bad enough in itself, since water is not noted for its lubrication qualities in an engine, but even worse, that water dissolves any nitrates formed during the combustion process. If my memory of chemistry serves me right, that leaves you with a mixture of Nitric (HNO3) and Nitrous (HNO2) acid circulating round your engine! So not only do you suffer a high rate of wear at start-up and when the engine is cold, you suffer a high rate of subsequent corrosion during normal running or even when stationary.
The point I'm trying to make is that the optimum time for changing oil ought to be related to a number of factors, of which distance travelled is probably one of the least important in most cases. Here is my selection in rough order of importance:

Number of cold starts (more condensation in a cold engine)
Ambient temperature (how long before warm enough to stop serious condensation)
Effectiveness of crank case scavenging (more of that anon)
State of wear of the engine (piston blow-by multiplies the problem)
Accuracy of carburation during warm-up period (extra gook produced)
Distance travelled (well, lets get that one out of the way)
If you were clever (or anal) enough, you could probably come up with a really clever formula incorporating all those factors. However, I would give 1, 2, and 3 equal top weighting. Items 1 to 3 have to be taken together since a given number of "cold" starts in the Dakar in summer is not the same as an equal number conducted in Fargo in January. The effect in either case will be modified by how much gas gets past the pistons. What we are really after is the severity and duration of the initial condensation period. All other things being equal, that will give you how much condensate will be produced and I would suggest that more than anything else determines when the oil should be dumped.
http://www.carbibles.com/engineoil_bible.html
harofreak00 is offline   Reply With Quote
Old 10-21-2006, 11:59 PM   #5
Senior Member
Posts like a Corvette
 
Ol' Timer's Avatar
 
Join Date: Oct 2002
Location: New Jersey - Most of Our Elected Officials Have Not Been Indicted
Posts: 1,483
Thanks: 0
Thanked 0 Times in 0 Posts
Ol' Timer is on a distinguished road
Default

My father-in-law has 2 Buicks (Park Ave). On each one he puts less than 3,000 miles per year. I change the oil for him once a year(5W-30 Dino) and before I reset the Oil Life Indicator, it reads approx. 25% life left.
Ol' Timer is offline   Reply With Quote
Old 10-22-2006, 12:02 AM   #6
Senior Member
Posts like a Camaro
 
Join Date: Dec 2004
Location: Mankato MN.
Posts: 1,005
Thanks: 0
Thanked 0 Times in 0 Posts
Midnight Express is on a distinguished road
Default

I think if thats all the miles your putting on your car a year I would just run plane old Dino Oil
Midnight Express is offline   Reply With Quote
Old 10-22-2006, 02:49 AM   #7
Senior Member
Posts like a Northstar
 
Join Date: Apr 2006
Location: Dimondale, MI
Posts: 549
Thanks: 0
Thanked 0 Times in 0 Posts
F14CRAZY is on a distinguished road
Default

15w50? Is there a special reason for the thick stuff?

To me, it depends on where it'* stored. If its in a nice garage without too much temperature change (moisure) then I'd think once a year is fine
F14CRAZY is offline   Reply With Quote
Old 10-22-2006, 11:48 AM   #8
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

I changed it.

I like the extra protection that synthetic gives me.

I use thicker viscosity oil in this car because it is an old engine with close to 100 K on it and it helps with the rear main seal that leaks using lighter oil.
2000SilverBullet is offline   Reply With Quote
Old 10-22-2006, 05:12 PM   #9
Senior Member
Posts like a Northstar
 
Join Date: Apr 2006
Location: Dimondale, MI
Posts: 549
Thanks: 0
Thanked 0 Times in 0 Posts
F14CRAZY is on a distinguished road
Default

I see
F14CRAZY is offline   Reply With Quote
Old 10-22-2006, 05:19 PM   #10
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

That was just me being anul.

I think it would have been safe to have just changed the filter considering it was garaged most of the time and only driven a few times a month.

Even a small amount of acid in the oil could be enough to corrode a bearing while it'* sitting all winter.
2000SilverBullet is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Supercharged 96-98 Cobra vs. "600 Horse" Supra SSsuperchargedEi Your Other Rides: Pics & Videos 21 10-08-2004 09:29 PM
17 going on 600 driverjohn2005 Lounge 3 06-15-2004 04:03 PM
I just spent 600$buckaroo's :0 Paulnold Performance, Brainstorming & Tuning 12 12-19-2003 01:52 AM
600 members! willwren Lounge 11 02-12-2003 11:51 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:30 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.