How long between Oil Changes --Synthetic
Elder User
Joined: Mar 2006
Posts: 751
Likes: 0
From: Greeneville,TN
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Joined: Nov 2006
Posts: 11,286
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From: North of Greenville
I've been hanging out at about 12-13K with 5w40 synthetic... now hoping to see if I can make it a 15K stretch. Running OilGuard's bypass system and Schaeffer's 9000 series 5w40.
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Senior User
Joined: May 2006
Posts: 166
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From: Bryan, TX
Enlighten me about this... I am interested in finding out how long I can push my oil changes...
Sorry for the
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
Yes,
There a quite a few companies thet do used oil analysis (UOA) test. Schaeffer's, Blackstone Labs, OAI, etc.... Schaeffer's cost $9 each if you buy a case of 6, IIRC Blackstone's cost about $22 each and OAI is around $22 each also.
Just take a sample at your next oil change and send it in. Each lab has a different format and some supply more information than others. Best to post your first analysis to get to understand some of the details, but after a couple they are easy to read.
Great indication of the health & wearing of the motor.
I should clarify that my report is from using Schaeffer's synthetic blend 15W-40. Jamie & Pete are running the full synthetic 5W-40.
There a quite a few companies thet do used oil analysis (UOA) test. Schaeffer's, Blackstone Labs, OAI, etc.... Schaeffer's cost $9 each if you buy a case of 6, IIRC Blackstone's cost about $22 each and OAI is around $22 each also.
Just take a sample at your next oil change and send it in. Each lab has a different format and some supply more information than others. Best to post your first analysis to get to understand some of the details, but after a couple they are easy to read.
Great indication of the health & wearing of the motor.
I should clarify that my report is from using Schaeffer's synthetic blend 15W-40. Jamie & Pete are running the full synthetic 5W-40.
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
here's the link:
North Texas Power Stroke Association - Rally Info
Elder User
Joined: Mar 2006
Posts: 751
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From: Greeneville,TN
Allen you are exactly right. They will test your oil and give your change interval.
The procedures are as follows.
1) Send in a sample of your current oil and get a base line.
2) Run Schaeffers 5,000 miles and drain it. No test needed. During this time Schaeffer will start to clean up the motors. This oil analysis does not look as good for this reason.
3) Run it 7000 miles and do a UOA. Make sure that you tell them you want to extend your drain intervals. Then wait to hear back from them. '
4) Then just follow what they recommend.
5) Take other sample after the recommended mileage
6) Continue this untill they tell you to drain it.
The longer you run with Schaeffer's the longer you will be able to extend you drain intervals.
The procedures are as follows.
1) Send in a sample of your current oil and get a base line.
2) Run Schaeffers 5,000 miles and drain it. No test needed. During this time Schaeffer will start to clean up the motors. This oil analysis does not look as good for this reason.
3) Run it 7000 miles and do a UOA. Make sure that you tell them you want to extend your drain intervals. Then wait to hear back from them. '
4) Then just follow what they recommend.
5) Take other sample after the recommended mileage
6) Continue this untill they tell you to drain it.
The longer you run with Schaeffer's the longer you will be able to extend you drain intervals.
Post Fiend
Joined: Feb 2002
Posts: 10,600
Likes: 3
From: Carhenge
Allen you are exactly right. They will test your oil and give your change interval.
The procedures are as follows.
1) Send in a sample of your current oil and get a base line.
2) Run Schaeffers 5,000 miles and drain it. No test needed. During this time Schaeffer will start to clean up the motors. This oil analysis does not look as good for this reason.
3) Run it 7000 miles and do a UOA. Make sure that you tell them you want to extend your drain intervals. Then wait to hear back from them. '
4) Then just follow what they recommend.
5) Take other sample after the recommended mileage
6) Continue this untill they tell you to drain it.
The longer you run with Schaeffer's the longer you will be able to extend you drain intervals.
The procedures are as follows.
1) Send in a sample of your current oil and get a base line.
2) Run Schaeffers 5,000 miles and drain it. No test needed. During this time Schaeffer will start to clean up the motors. This oil analysis does not look as good for this reason.
3) Run it 7000 miles and do a UOA. Make sure that you tell them you want to extend your drain intervals. Then wait to hear back from them. '
4) Then just follow what they recommend.
5) Take other sample after the recommended mileage
6) Continue this untill they tell you to drain it.
The longer you run with Schaeffer's the longer you will be able to extend you drain intervals.
Senior User
Joined: Jun 2008
Posts: 278
Likes: 0
From: Boca Raton, FL
I just put my first batch of Schaeffers 15w-40 synthetic in two weeks ago with a Mobil 1 extended life oil filter. I was hoping to avoid getting a bypass filtration system. I am going to drain and change at 5k and send in a UOA. Im caught wondering if an oil bypass system is worth it. Just more crap to change. And theyre expensive.
But if Im going to ad one Id like to do it on the next change...
But if Im going to ad one Id like to do it on the next change...