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Mechanical Maintenance: Break-in / Oil & Fluids / Servicing Discussions on mechanical maintenance and servicing of your Camaro

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Old 05-11-2013, 03:04 PM   #1
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Diff. Fluid change?

This has probably been asked 1,000 times, but I can not seem to find the answer I am looking for anywhere. I have a 2012 V6 Automatic with 10,000 miles on it so I know I am do for a diff change. I know I don't need the additive in the diff fluid but if I put Royal Purple in mine will the additive that's in it already mess up my diff.
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Old 05-11-2013, 03:25 PM   #2
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I have never heard of changing differential fluid at 10k miles. Maybe for racing?
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Old 05-11-2013, 03:27 PM   #3
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No just been reading some of the older theads and just mainly for a piece of mind more than anything else
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Old 05-11-2013, 03:33 PM   #4
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I did mine at 13k. Noticed an improvement and trust me it was dirty of shavings. Glad I did. I put in RP and it took 10 minutes or so. I highly recommend it

Btw just add the new oil and do some figure 8's in the parking lot
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Old 05-11-2013, 03:38 PM   #5
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I changed mine at 50K and put in Royal Purple. I am at 64K now and have had no issues!
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Old 05-11-2013, 03:39 PM   #6
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And you guys have automatics right? And thanks for the input.
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Old 05-11-2013, 03:47 PM   #7
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Yes mine is an auto. It's just like changing your oil.
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Old 05-11-2013, 07:17 PM   #8
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Auto here also!
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Old 05-11-2013, 08:30 PM   #9
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Cool thanks guys finished it right after the post went off without a hitch no issues
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Old 05-11-2013, 08:34 PM   #10
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Awesome!
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Old 05-11-2013, 08:46 PM   #11
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Is there a drain plug or do you have to remove the cover (thanks for saving me from looking under the car)


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Old 05-11-2013, 08:48 PM   #12
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Drain plug and fill is on the driver side. Not too bad did mine today
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Old 05-11-2013, 09:07 PM   #13
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Good Job. Tip of the day for others. Remove the fill plug first. No sense removing the drain plug first only to find you cannot get the fill plug out. Then you have problems.

I did mine at 2300 miles to dump the stock fluid and any shavings. Then again at 25K. Wanted to see what it looked like since I had been down the track a number of times.

I went with Royal Purple. I have an automatic. Just like changing oil. Nothing to it.
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Old 05-11-2013, 11:00 PM   #14
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change it, make sure you get a good oil and the slip additive...wait i am clueless on v6 does their rearend need the slip additive?
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Old 05-12-2013, 06:15 AM   #15
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Quote:
Originally Posted by SPCBA View Post
change it, make sure you get a good oil and the slip additive...wait i am clueless on v6 does their rearend need the slip additive?
Yes, if it is a manual.
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Old 05-12-2013, 04:50 PM   #16
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I changed my fluid at approx. 8,000 miles. I used 1 quart of Amsoil and 4.5 oz of GM posi additive. The owner's manual actually recommends changing the rear end fluid @ 3,000 miles if the car is used for competiton/racing. I don't race my car so changing the fluid at 8,000 was more like a peace of mind for me. Plus, it gets rid of excess metal shavings from vehicle break-in. I also wanted to add good quality stuff like Amsoil. The process is as easy as changing engine oil so I figured, why not?
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Old 05-13-2013, 12:45 AM   #17
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Quote:
Originally Posted by LimaCharlie View Post
I changed my fluid at approx. 8,000 miles. I used 1 quart of Amsoil and 4.5 oz of GM posi additive. The owner's manual actually recommends changing the rear end fluid @ 3,000 miles if the car is used for competiton/racing. I don't race my car so changing the fluid at 8,000 was more like a peace of mind for me. Plus, it gets rid of excess metal shavings from vehicle break-in. I also wanted to add good quality stuff like Amsoil. The process is as easy as changing engine oil so I figured, why not?
even for a manual?? never done any diff fluid work
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Old 05-13-2013, 08:44 AM   #18
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Too clarify changing rear diff. on a v6...

Automatic no additive needed
Manual-additive needed

Like rtcat600man said...after the car is jacked up, take out the top bolt first and clean off the plug...make sure you keep the o-ring if it falls off when you take it out.

Next, put a pan under the bottom plug and take out that plug. (BEWARE use gloves!!!! This fluid is nasty smelling and it is difficult to get rid of). Again, clean that plug.

Some people move their jack up and down to get every last drop. I didn't find this necessary so I just put the bottom plug in. It is a little tricky getting the fluid bottle to fit correctly to fill the the top plug. You may have to squeeze the bottle and move it around to get it to go in. Then put the top plug back in.

After you have the plugs in, take if into a parking lot and do some figure 8's to get the fluid moving around the gears.

http://www.camaro5.com/forums/showthread.php?t=161654
This is the thread I went by when I changed mine.
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Old 05-13-2013, 10:39 AM   #19
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Changed ours for the first time at 700miles and was amazed how bad the fluid was and magnets were both full of metal, again changed it at 5000miles and 10000miles and fluid looked great used mobil 1 full syn at each change
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Old 05-14-2013, 08:31 AM   #20
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The differential fluid from the factory is synthetic, and good for many miles, under normal driving, not drag racing or beating on the rear-end with burnouts.

Of course the oil looks like heck, the gears are meshing together and forming a good fit together, kind of like when the Beatles added Ringo. There is no need to change it early (<50-70k miles) unless you feel better about it. You want the gears to wear together, that is the way gears are.

However, people on this forum love to change fluids early, and it is their money and time, so rock on.
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Old 05-14-2013, 08:49 PM   #21
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2qts of 75w90 is very cheap, definitely wouldn't want all those metal particals floating around in my rear axle for 50-70k
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Old 05-15-2013, 01:47 AM   #22
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I'd bet that a V-6 auto's open diff's fluid would look far better at 1000 miles on the odometer than a V-6 manual or an SS with a limited slip. Much of what we're seeing on the magnets is clutch material. Mine were pretty cruddy at 1500 miles. Should decrease quite a bit after the first change.

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Old 05-15-2013, 08:37 AM   #23
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Seeing how ours has no clutches in the rear end and our fluid was very black and burnt at 700miles both magnets packed full, maybe it has to do with what our car has to put up with every other sunday?
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Old 05-15-2013, 10:05 AM   #24
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Quite likely!

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Old 06-26-2013, 03:55 PM   #25
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Does the V8 auto require an additive?Sorry,I'm clue less :(
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