What do you guys think? I am going to change the gear oil to synthetic one( Mobil 1 ), and engine oil to (German) Castrol 0W-30. I think its safer to use synthetic for gears plus may bea better fueleconomy, expecially in winter, and I know 0W-30 ( which iscloserto 35 actually)is not 5-20, but feels safer. What do you think?
06GT 26k
__________________
'06 Mustang GT Convertible
5 Speed Manual
Front Strut Brace
34k miles
Sponsored Links
This ad is not displayed to registered members. Register your free account today and become a member on Mustang Forums!
The factory gear oilis synthetic, I changed mine at 10000, used Royal Purple 75w 140w added the ford friction modifier, I run Castrol Syntec 5w 20w in the engine, I have not had any troubles.
Amsoil 0W20 in the crankcase here. Some people here have gone to 30 in their crankcase but I think it's prudent to stick with Ford's recommendation.
__________________
Rick 07 GT Prem: Alloy, MT, 3.55's, Steeda CAI/Xcal2 w/Brenspeed 87, 89 & 93 tunes, FRPP Stingers, 275/40/18 Goodyear Eagle F1 All-seasons on SVT 2007 Cobras (OE GT500's)
14" shorty, Wheelskin side scoops & qtr window louvers, A-H rear window louvers, SHR honeycomb blackout panel, Sequentials, big black dog in the back seat
The factory gear oilis synthetic, I changed mine at 10000, used Royal Purple 75w 140w added the ford friction modifier, I run Castrol Syntec 5w 20w in the engine, I have not had any troubles.
RP already has friction modifier in it you shouldnt need to add more.
__________________
06 Black GT Auto
Airaid CAI/Brenspeed/Summit CoP's/JBA Shorties/Prothane Motor Mounts/FRPP 3.73's/M-5230-GTA's/FRPP handling pack/G-Trac Brace/Roush spoiler
The factory gear oilis synthetic, I changed mine at 10000, used Royal Purple 75w 140w added the ford friction modifier, I run Castrol Syntec 5w 20w in the engine, I have not had any troubles.
RP already has friction modifier in it you shouldnt need to add more.
You will still need the modifier. I don't care what they say. Been there, done that.
__________________
2006 Premium GT Convertible
Screaming Yellow, Black Top
Black Leather
Interior Upgrade Pkg.
5 Speed
Side Airbags
18" "Fanblade Wheels"
Shaker 500 Audio System
CORSA Performance exhaust
Brenspeed 93 octane tune
MGW Shifter
The factory gear oilis synthetic, I changed mine at 10000, used Royal Purple 75w 140w added the ford friction modifier, I run Castrol Syntec 5w 20w in the engine, I have not had any troubles.
RP already has friction modifier in it you shouldnt need to add more.
You will still need the modifier. I don't care what they say. Been there, done that.
No problems at all here, to many have said not to add more for me to change my mind.
__________________
06 Black GT Auto
Airaid CAI/Brenspeed/Summit CoP's/JBA Shorties/Prothane Motor Mounts/FRPP 3.73's/M-5230-GTA's/FRPP handling pack/G-Trac Brace/Roush spoiler
Oils
