Has Royal Purple solved your differential chatter?
02-04-2007, 10:03 PM
#1
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Has Royal Purple solved your differential chatter?
Want to know if it's worth the effort of changing out the differential to royal purple synthetic, I currently have a very slight chatter when cold and would rather take care of this myself than go to the dealer.
What do you guys think about royal purple, also, anybody using a different oil which took care of the chatter, I am open to new ideas, thanks.
What do you guys think about royal purple, also, anybody using a different oil which took care of the chatter, I am open to new ideas, thanks.
02-04-2007, 10:49 PM
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Want to know if it's worth the effort of changing out the differential to royal purple synthetic, I currently have a very slight chatter when cold and would rather take care of this myself than go to the dealer.
What do you guys think about royal purple, also, anybody using a different oil which took care of the chatter, I am open to new ideas, thanks.
What do you guys think about royal purple, also, anybody using a different oil which took care of the chatter, I am open to new ideas, thanks.
If you use Royal Purple Max-Gear Synthetic, 75w-90 with Synslide, no friction modifiers are required as they are already in the lubricant. I had my clutch plates replaced 12,000 ago, switched to Royal Purple Max-Gear Synthetic, 75w-90 with Synslide at that time and so far so good.
02-05-2007, 02:57 PM
#7
I've never had any chatter, but switched to RP 75w-90 straight up at 1200 miles. (I always change diff fluid in every car at 1200 miles.) I'm at 9000 miles with a silent rear end. From past experience I'm guessing RP puts more friction modifier in per unit volume of lubricant than Redline or Mobil-1, because it's the only 75W-90 I've never had to add friction modifier with to quell chatter.
Shopdog will probably tell me I'm stupid again
, but I change my differential fluid every three years. It never ceases to amaze me how much metal is visible in the old fluid (on every car, not just vettes).
Shopdog will probably tell me I'm stupid again
, but I change my differential fluid every three years. It never ceases to amaze me how much metal is visible in the old fluid (on every car, not just vettes).
02-05-2007, 03:06 PM
#8
02-05-2007, 03:07 PM
#9
I've never had any chatter, but switched to RP 75w-90 straight up at 1200 miles. (I always change diff fluid in every car at 1200 miles.) I'm at 9000 miles with a silent rear end. From past experience I'm guessing RP puts more friction modifier in per unit volume of lubricant than Redline or Mobil-1, because it's the only 75W-90 I've never had to add friction modifier with to quell chatter.
Shopdog will probably tell me I'm stupid again , but I change my differential fluid every three years. It never ceases to amaze me how much metal is visible in the old fluid (on every car, not just vettes).
Shopdog will probably tell me I'm stupid again
, but I change my differential fluid every three years. It never ceases to amaze me how much metal is visible in the old fluid (on every car, not just vettes).
02-05-2007, 03:29 PM
#10
http://www.mobil1.com/USA-English/Mo..._75W-90LS.aspx
I've never tried the NS version of Redline, so every sample I've tried supposedly has FM too.
As for what's wrong with changing differential fluid, GM doesn't recommend it at all.
02-05-2007, 03:52 PM
#11
Le Mans Master
02-05-2007, 04:30 PM
#12
Sorry, but Mobil-1 does contain friction modifier. See:
http://www.mobil1.com/USA-English/Mo..._75W-90LS.aspx
I've never tried the NS version of Redline, so every sample I've tried supposedly has FM too.
As for what's wrong with changing differential fluid, GM doesn't recommend it at all.
http://www.mobil1.com/USA-English/Mo..._75W-90LS.aspx
I've never tried the NS version of Redline, so every sample I've tried supposedly has FM too.
As for what's wrong with changing differential fluid, GM doesn't recommend it at all.
Thanks! I used to use Mobil1 gear oil in my other cars, plus a bottle of limited slip additive. I now use Red Line gear oil in the Z06. I wasn't aware that Mobil1 now has a "LS" version. I "learnt" something today.
02-05-2007, 04:58 PM
#13
Melting Slicks
WOW, awesome pic!!! Got any more? If so, please post!
70k miles already on a C6.... NICE!
Now that's how a C6 was meant to be used! I look forward to the day when I have the time to run that hard!
Awesome!
02-05-2007, 06:59 PM
#15
Le Mans Master
02-05-2007, 10:06 PM
#16
Racer
Mine's been in twice for the problem; at 10K miles, they just replaced the fluid. At 12K miles they replaced the clutch pack, and that was 8K miles ago, with no problem since...All done by the dealer with their lubricants...
02-06-2007, 07:31 AM
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I tried GM, Mobil 1, and finally Redline. It has been approximately 6000 miles since Redline with no problems so far. I did add the GM additive to it also. I think the trick is to make about 8 very slow figure 8's to work the new fluid into the clutch packs.
Last edited by mike72; 02-06-2007 at 07:48 AM.
