Changing differential Fluid...

IceMan · 02-10-2006, 04:17 PM

Is that purple stuff worth using or should I order some motorcraft stuff out of the ford racing catalogue?

Thanks,

*4.6 Love* · 02-10-2006, 04:22 PM

Royal purple or red line fluids work great..

*Lances03SVT* · 02-10-2006, 04:30 PM

I'm having too use Castrol Syntec since MT was out of the purple.

*madmatt* · 02-10-2006, 05:41 PM

Yes it's worth it. I need to order some next time I get something from MT cough raptor cough cough

*Lances03SVT* · 02-10-2006, 06:18 PM

Uh oh you said the Ban Word!!!

Saleen S330 · 02-11-2006, 01:37 PM

I have royale purple in the motor, tranny, power steering, and differential. It's worth it. Horsepower TV showed and SS (Super Sux) on there and they swapped everyhthing out and gained around 10HP to the wheels. I had to see it to believe it.

r3dn3ck · 02-13-2006, 02:16 PM

RP is good stuff. I'd use it and that says a lot to people that know me. I use Redline Light Shockproof synthetic. It's a personal choice but, I'd just as soon use RP. What you should get is a 4oz bottle of equa-torque.

I like shockproof gear oils for mustangs because of the number of clutch drop burnouts I see that involve them. If you don't do drag racing or burn-outs or anything really aggressive, then regular synthetic GL-5 is fine.

FWIW, I've had the fortune to open a couple thousand differential inspection covers back in the day as part of my job. The one thing I noticed was that the insides of the carriers on synthetic running diffs were lots cleaner than those that filled with conventional GL-5. No other difference was noticable to me.

wpgfordguy · 02-14-2006, 01:46 PM

I use royal purple,

What's more important is... Make sure you use somthing compatible with the Ford Sythetic with Friction modifier or kiss the diff clutches goodbye.

r3dn3ck · 02-14-2006, 02:03 PM

have you ever come across such a fluid labelled as GL5? Just curious... in 15 years I've never come across a GL5 marked fluid that you couldn't use in combination with equa torque. I'd like to know if there's one out there that I've not seen yet.

Does anyone know if something like Lucas Oil treatment is compatible with GL5 for such a purpose? The huge film strength of that stuff suggests to me that it'd be nice for gearboxes.

IceMan · 02-23-2006, 04:00 PM

I'm going the safe way and getting motorcraft fluid with friction modifier...

Thanks all

matrixpuba · 02-26-2006, 03:01 AM

+1 on royal purple

IceMan · 03-01-2006, 11:18 AM

Went with the ford motorcraft gear oil and friction modifier...

-3 Bottles of Motorcraft gear oil
-3 Bottles of Motorcraft transmission fluid
-2 Bottle of Motorcraft friction modifier
-1 Tube of Motorcraft silicone differential sealant
------------------------
$92.68

On top of that, this was purchased under my friends employee pricing...
Gotta love Genuine ford pricing...

-B

03-01-2006, 11:56 AM

what is the difference between different gear oil?
i always used... gear oil...

what the heck does purle oil do that regular doesnt?

IceMan · 03-09-2006, 03:12 PM

Royal purple is just gear oil.. The only difference being that some purple products have friction modifier mixed in them already. With reg gear oil, you have to mix the 4oz yourself.

-B

WaterDR · 03-09-2006, 03:53 PM

I Raptor Just Raptor ordered Raptor RP Raptor from Raptor MT.

r3dn3ck · 03-09-2006, 04:18 PM

<hearsay>Royal purple is blended in small batches with a high degree of accuracy but from my reading on the subject it seems that they don't have a standard "formula" in that one batch to another may use different amounts of each substance/ingredient. </hearsay>

Most commercially manufactured gear lube (hell most any petro-chemical) is made in usually very large batches using a fixed formula. There are different reasons for both methods but they come down to the same result, repeatability. Royal Purple has a different audience than gas-station-brand and those people are usually more interested in edge-of-the-envelope performance than standard service performance.

I like redline light shockproof and heavy shockproof for rear ends but that's a personal preference based on how I set up and use my car. I would use synthetic over a conventional any day because of the greater stability potential of synthetics and normally better thermal properties.

From what I remember Ford started spec'ing synthetic gear oils in the diffs at least a decade ago. Given that they specify synthetics, I'd stay with it. I'm sure they figured out that a conventional wouldn't do what they wanted or they'd have stayed with it since synthetic is so much more expensive.

</$.02>

*madmatt* · 03-10-2006, 02:45 PM

Quote:

Originally Posted by MT's#1Customer!

I Raptor Just Raptor ordered Raptor RP Raptor from Raptor MT.

How the heck did you do that?

LOL nm you had me all excited like they had them or something.

btw...RAPTOR RAPTOR RAPTOR

GT4DUMMIES · 03-11-2006, 10:09 PM

Ok there IS NO WAY IN HELL that changing the fluids to royal purple gained 10 rwhp - HAVE TO CALL BULLSH!T on THAT!

02-10-2006, 04:17 PM	#1 (permalink)
IceMan Yellow C5 Z06 Join Date: Sep 2004 Location: Ocoee, FL Posts: 306	Changing differential Fluid... Is that purple stuff worth using or should I order some motorcraft stuff out of the ford racing catalogue? Thanks, __________________ C5 Yellow Corvette Z06 - 402rwhp 392rwt 2003 Red Fire SVT Cobra - Sold 2003 Torch Red Mach 1 - Sold 2003 Black Mach 1 - Sold

02-10-2006, 04:22 PM	#2 (permalink)
4.6 Love Super Moderator Join Date: Sep 2004 Location: Mexico Posts: 6,153	Royal purple or red line fluids work great.. __________________ Go Cowboys! X pipe and flows

02-10-2006, 04:30 PM	#3 (permalink)
Lances03SVT Super Moderator Join Date: May 2005 Location: Carthage, Missouri Posts: 9,244	I'm having too use Castrol Syntec since MT was out of the purple. __________________ _______________________ 2003 Cobra SOLD

02-10-2006, 05:41 PM	#4 (permalink)
madmatt Traitor...lol Join Date: Sep 2004 Location: Lexington, SC Posts: 7,929	Yes it's worth it. I need to order some next time I get something from MT cough raptor cough cough __________________ RPMPlanets

02-10-2006, 06:18 PM	#5 (permalink)
Lances03SVT Super Moderator Join Date: May 2005 Location: Carthage, Missouri Posts: 9,244	Uh oh you said the Ban Word!!! __________________ _______________________ 2003 Cobra SOLD

02-11-2006, 01:37 PM	#6 (permalink)
Saleen S330 Banned Join Date: Jan 2006 Location: Sumter, SC Posts: 900	I have royale purple in the motor, tranny, power steering, and differential. It's worth it. Horsepower TV showed and SS (Super Sux) on there and they swapped everyhthing out and gained around 10HP to the wheels. I had to see it to believe it.

02-13-2006, 02:16 PM	#7 (permalink)
r3dn3ck Wowbagger hates me too! Join Date: Nov 2005 Location: Magrathea/California Posts: 7,008	RP is good stuff. I'd use it and that says a lot to people that know me. I use Redline Light Shockproof synthetic. It's a personal choice but, I'd just as soon use RP. What you should get is a 4oz bottle of equa-torque. I like shockproof gear oils for mustangs because of the number of clutch drop burnouts I see that involve them. If you don't do drag racing or burn-outs or anything really aggressive, then regular synthetic GL-5 is fine. FWIW, I've had the fortune to open a couple thousand differential inspection covers back in the day as part of my job. The one thing I noticed was that the insides of the carriers on synthetic running diffs were lots cleaner than those that filled with conventional GL-5. No other difference was noticable to me.

02-14-2006, 01:46 PM	#8 (permalink)
wpgfordguy Dat Stang Guy eh? Join Date: Oct 2005 Location: Winnipeg Canada Posts: 42	I use royal purple, What's more important is... Make sure you use somthing compatible with the Ford Sythetic with Friction modifier or kiss the diff clutches goodbye. __________________ 2005 Mustang GT Coupe, black on black leather Black 18 x 9 FR500's From Mustang Tuning Dynamite Seq Lights...From Mustang Tuning Spec 2 with Aluminium Flywheel Saleen S281 Suspension Pro 5.0 Shifter Precision 4.10's Metco Lower Control Arms WMS Ram Air Bassani Axle-back ESP Solo II Monster

02-14-2006, 02:03 PM	#9 (permalink)
r3dn3ck Wowbagger hates me too! Join Date: Nov 2005 Location: Magrathea/California Posts: 7,008	have you ever come across such a fluid labelled as GL5? Just curious... in 15 years I've never come across a GL5 marked fluid that you couldn't use in combination with equa torque. I'd like to know if there's one out there that I've not seen yet. Does anyone know if something like Lucas Oil treatment is compatible with GL5 for such a purpose? The huge film strength of that stuff suggests to me that it'd be nice for gearboxes.

02-23-2006, 04:00 PM	#10 (permalink)
IceMan Yellow C5 Z06 Join Date: Sep 2004 Location: Ocoee, FL Posts: 306	I'm going the safe way and getting motorcraft fluid with friction modifier... Thanks all __________________ C5 Yellow Corvette Z06 - 402rwhp 392rwt 2003 Red Fire SVT Cobra - Sold 2003 Torch Red Mach 1 - Sold 2003 Black Mach 1 - Sold

02-26-2006, 03:01 AM	#11 (permalink)
matrixpuba Senior Member Join Date: Feb 2006 Location: tennessee Posts: 1,103	+1 on royal purple

03-01-2006, 11:18 AM	#12 (permalink)
IceMan Yellow C5 Z06 Join Date: Sep 2004 Location: Ocoee, FL Posts: 306	Went with the ford motorcraft gear oil and friction modifier... -3 Bottles of Motorcraft gear oil -3 Bottles of Motorcraft transmission fluid -2 Bottle of Motorcraft friction modifier -1 Tube of Motorcraft silicone differential sealant ------------------------ $92.68 On top of that, this was purchased under my friends employee pricing... Gotta love Genuine ford pricing... -B __________________ C5 Yellow Corvette Z06 - 402rwhp 392rwt 2003 Red Fire SVT Cobra - Sold 2003 Torch Red Mach 1 - Sold 2003 Black Mach 1 - Sold

03-01-2006, 11:56 AM	#13 (permalink)
GREG@94GT Posts: n/a	what is the difference between different gear oil? i always used... gear oil... what the heck does purle oil do that regular doesnt?

03-09-2006, 03:12 PM	#14 (permalink)
IceMan Yellow C5 Z06 Join Date: Sep 2004 Location: Ocoee, FL Posts: 306	Royal purple is just gear oil.. The only difference being that some purple products have friction modifier mixed in them already. With reg gear oil, you have to mix the 4oz yourself. -B __________________ C5 Yellow Corvette Z06 - 402rwhp 392rwt 2003 Red Fire SVT Cobra - Sold 2003 Torch Red Mach 1 - Sold 2003 Black Mach 1 - Sold

03-09-2006, 03:53 PM	#15 (permalink)
WaterDR Administrator Join Date: Sep 2004 Posts: 6,374	I Raptor Just Raptor ordered Raptor RP Raptor from Raptor MT. __________________ Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump My Car My Email

03-09-2006, 04:18 PM	#16 (permalink)
r3dn3ck Wowbagger hates me too! Join Date: Nov 2005 Location: Magrathea/California Posts: 7,008	<hearsay>Royal purple is blended in small batches with a high degree of accuracy but from my reading on the subject it seems that they don't have a standard "formula" in that one batch to another may use different amounts of each substance/ingredient. </hearsay> Most commercially manufactured gear lube (hell most any petro-chemical) is made in usually very large batches using a fixed formula. There are different reasons for both methods but they come down to the same result, repeatability. Royal Purple has a different audience than gas-station-brand and those people are usually more interested in edge-of-the-envelope performance than standard service performance. I like redline light shockproof and heavy shockproof for rear ends but that's a personal preference based on how I set up and use my car. I would use synthetic over a conventional any day because of the greater stability potential of synthetics and normally better thermal properties. From what I remember Ford started spec'ing synthetic gear oils in the diffs at least a decade ago. Given that they specify synthetics, I'd stay with it. I'm sure they figured out that a conventional wouldn't do what they wanted or they'd have stayed with it since synthetic is so much more expensive. </$.02>

03-11-2006, 10:09 PM	#18 (permalink)
GT4DUMMIES Senior Member Join Date: Feb 2006 Posts: 107	excuse me..but Ok there IS NO WAY IN HELL that changing the fluids to royal purple gained 10 rwhp - HAVE TO CALL BULLSH!T on THAT!

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