Royal Purple
Royal Purple
Senior Member
Joined: Mar 2002
Posts: 4,867
Likes: 0
From: NH
Yes, I have heard alot about it and read alot about it on here and else where. This Monday 10/14 I will be getting my Max. ATF for my manual trans. and their 75W-140 gear oil. I bought it through northernautos.com
From all I have read and heard about it, it is well worth the price.
If you decide to go with Royal Purple they say their gear oil has the friction modifier in it, but it has been recommended to me from here and the Ford dealer to add the friction modifier from Ford anyway. I already have the 4oz I need just waiting on the oil to get here.
From all I have read and heard about it, it is well worth the price.
If you decide to go with Royal Purple they say their gear oil has the friction modifier in it, but it has been recommended to me from here and the Ford dealer to add the friction modifier from Ford anyway. I already have the 4oz I need just waiting on the oil to get here.
Senior Member
Joined: Feb 2002
Posts: 271
Likes: 0
From: Fort Worth, Texas
Everything I have heard about Royal Purple has been good. I use Mobil one now and change at 5,000 miles. I am planning on switching to Royal Purple at next oil change, it is about $1 a quart more than Mobil 1 here in Fort Worth. I think as long as you use a good synthetic with a good oil filter (Motorcraft,Mobil One,Purolator to name a few) and change at a reasonable interval you should have no problem. I am switching to Royal Purple for the peace of mind.
Junior Member
Joined: Oct 2002
Posts: 3
Likes: 0
From: Fresno, Ca
hey all I know Im new here, but I use Royal purple in everyting. its almost like a must.
heres our cars that use it:
2000 Escort ZX2 NA 180HP
1998 automatic Escort ZX2 NA 150HP
2000 Escort ZX2 Turbo 200+Hp
1997 F150 4.6 169,xxx miles
2000 cougar V6
1988 Escort with new Zetec motor(rally car)will be 225Hp when its on the road!
heres our cars that use it:
2000 Escort ZX2 NA 180HP
1998 automatic Escort ZX2 NA 150HP
2000 Escort ZX2 Turbo 200+Hp
1997 F150 4.6 169,xxx miles
2000 cougar V6
1988 Escort with new Zetec motor(rally car)will be 225Hp when its on the road!
Senior Member
Joined: Aug 2001
Posts: 743
Likes: 1
From: Wylie, Texas
Originally posted by 01 XLT Sport
From all I have read and heard about it, it is well worth the price. If you decide to go with Royal Purple they say their gear oil has the friction modifier in it, but it has been recommended to me from here and the Ford dealer to add the friction modifier from Ford anyway. I already have the 4oz I need just waiting on the oil to get here.
From all I have read and heard about it, it is well worth the price. If you decide to go with Royal Purple they say their gear oil has the friction modifier in it, but it has been recommended to me from here and the Ford dealer to add the friction modifier from Ford anyway. I already have the 4oz I need just waiting on the oil to get here.
Isn't the 'fricton modifier' only for limited slip rear ends?
Senior Member
Joined: Mar 2002
Posts: 4,867
Likes: 0
From: NH
STX/98:
Yes, your correct. You only need the friction modifier for the limited slip rearends. I believe its to reduce noise, but if you or someone else knows just why you need it please post. I just know you are suppose to add it to limited slip as you pointed out.
I actually asked Mike from the Computer Chips forum, he is the Superchip distributer. Anyway I asked Mike about the Royal Purple and what he thought as far as if I should add the friction modifier regardless of what Royal Purple state (that's its already in it). Mike's reply is they add it regardless.
Yes, your correct. You only need the friction modifier for the limited slip rearends. I believe its to reduce noise, but if you or someone else knows just why you need it please post. I just know you are suppose to add it to limited slip as you pointed out.
I actually asked Mike from the Computer Chips forum, he is the Superchip distributer. Anyway I asked Mike about the Royal Purple and what he thought as far as if I should add the friction modifier regardless of what Royal Purple state (that's its already in it). Mike's reply is they add it regardless.