Well, I changed the oil in my '05 GT for the first time yesterday (No, it's not the first time the oil has been changed since new ) I used Royal Purple and about fell over at what it cost....almost $100 for an oil change with the filter. But hopefully it'll be worth it, and it will help with my poor gas milage some. My milage has been very erratic since I bought the car. It started around 16 (mixed city/highway driving), then it went up to around 18 after I cleaned the throttle body and MAF, then it went back down to around 15 Other than cleaning the MAF and throttle body once, I haven't made any changes at all to the car.
Along the same lines, I'm going to change the fluids in the transmission and the rear differential soon too. What is the concensus on fluids for these? I've had extremely good luck in the past with Redline Shock Proof. I've used it in all of my previous Mustangs as well as several 4x4 vehicles that see lots of hard off road use, and I can certainly attest to the fact that it helps with hard shock loads. It also does an excellent job of smoothing out notchy shifting.
Also are any friction modifiers needed for the synchros in the Tremec 5 speed transmissions or for the limited slip in the rear end?
Thanks!
Along the same lines, I'm going to change the fluids in the transmission and the rear differential soon too. What is the concensus on fluids for these? I've had extremely good luck in the past with Redline Shock Proof. I've used it in all of my previous Mustangs as well as several 4x4 vehicles that see lots of hard off road use, and I can certainly attest to the fact that it helps with hard shock loads. It also does an excellent job of smoothing out notchy shifting.
Also are any friction modifiers needed for the synchros in the Tremec 5 speed transmissions or for the limited slip in the rear end?
Thanks!