Switching to Synthetic Oil on Used Car?
#857361
11/18/10 07:37 PM
11/18/10 07:37 PM
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Joined: Jan 2003
Posts: 8,396
Highland, MI.
Sunroofcuda
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master
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OP
master
Joined: Jan 2003
Posts: 8,396
Highland, MI.
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Would there be any downside to switching to synthetic oil on a 100,000 mile engine that has lived it's whole life on regular oil? Car is a 2001 300-M with the 3.5L. Will the synthetic oil "clean-up" the inside of the motor IF it is sludgy? (I'd bet the inside of this engine is very clean though as the car was meticulously maintained).
No Man With A Good Car Needs To Be Justified
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Re: Switching to Synthetic Oil on Used Car?
[Re: MoparMarq]
#857366
11/19/10 01:14 AM
11/19/10 01:14 AM
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Joined: Jan 2003
Posts: 8,396
Highland, MI.
Sunroofcuda
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OP
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Joined: Jan 2003
Posts: 8,396
Highland, MI.
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That's what I wanted to know guys - thanks. Switching to synthetic tomorrow & here's to another 150k miles! My wife & I like this car better than our 2007 Charger, & we love the Charger.............
No Man With A Good Car Needs To Be Justified
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Re: Switching to Synthetic Oil on Used Car?
[Re: Shoozy]
#857368
11/20/10 08:02 AM
11/20/10 08:02 AM
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Joined: Mar 2005
Posts: 1,445
Sterling Heights, Michigan 483...
daniel_depetro
pro stock
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pro stock
Joined: Mar 2005
Posts: 1,445
Sterling Heights, Michigan 483...
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I don't think weeps, seeps, and drips are common side effects from switching to synthetic oil.
If one does discover a new leak I'd bet it's from the superior cleaning detergents in the synthetic oil removing the sludge of dino oil that is built up in the "corners" thus possibly exposing a leak that was already there but plugged. No, not butt plug!
When you guys switch to synthetics are you adding zddp additives?
I've switched everything I own (Air compressor, motorcycle(s), car(s), truck(s), ...) over to synthetic oils in all drivetrain components (engine, transmission, rear axle).
I personally never had any issues yet, never had any leaks form.
1969 Dodge Super Bee A12 (440 Six Pack, 4-speed, Dana 60 4.10)
1972 Plymouth Road Runner (400, 4-speed, 8.75" 3.23)
1974 Plymouth Duster 360 (360, 4-speed, 8.75" 3.23)
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Re: Switching to Synthetic Oil on Used Car?
[Re: daniel_depetro]
#857369
11/20/10 08:22 AM
11/20/10 08:22 AM
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Joined: Apr 2008
Posts: 1,285
Pacific NW USA
CompSyn
pro stock
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pro stock
Joined: Apr 2008
Posts: 1,285
Pacific NW USA
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Quote:
I don't think weeps, seeps, and drips are common side effects from switching to synthetic oil.
If one does discover a new leak I'd bet it's from the superior cleaning detergents in the synthetic oil removing the sludge of dino oil that is built up in the "corners" thus possibly exposing a leak that was already there but plugged. No, not butt plug!
When you guys switch to synthetics are you adding zddp additives?
I've switched everything I own (Air compressor, motorcycle(s), car(s), truck(s), ...) over to synthetic oils in all drivetrain components (engine, transmission, rear axle).
I personally never had any issues yet, never had any leaks form.
Good points!
On a side note, there are some synthetics with loads of ZDDP already blended in for well balanced finished product.
Avoid added cost and efforts with aftermarket oil additives and apply those funds to a well balanced finished motor oil product.
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