Royal Purple Oil Experience - 2005 Mustang GT
10-31-2010, 04:24 PM
#51
Underboss
Join Date: Jan 2006
Location: Helaware
Posts: 20,273
If you are using Mobil 1 5W-20 (or 5W-30) API SM, then I feel sorry for you. It's not what it use to be, and you like others, are being mislead.
There are formulations of Mobil 1 even I would still use. Their 0W-40 and any weight they formulate in their High Mileage oils. Those are still API SL, and have a much better additive pack like the Mobil oils from yesteryear.
Seriously, either change to the high mileage stuff....or bail on Mobil 1 all together.
There are formulations of Mobil 1 even I would still use. Their 0W-40 and any weight they formulate in their High Mileage oils. Those are still API SL, and have a much better additive pack like the Mobil oils from yesteryear.
Seriously, either change to the high mileage stuff....or bail on Mobil 1 all together.
10-31-2010, 11:09 PM
#52
4th Gear Member
Join Date: Feb 2008
Location: Pensacola, Florida
Posts: 1,465
getting me to use a true group II base stock oil...
I would give my Shelby away for free before I did that. lol
*kidding*
I prefer your cocktail lusts of MotorCraft SynBlend myself, although to admit it....I really haven't looked into Mobil's "cheaper" blends.
I would give my Shelby away for free before I did that. lol
*kidding*
I prefer your cocktail lusts of MotorCraft SynBlend myself, although to admit it....I really haven't looked into Mobil's "cheaper" blends.
05-14-2013, 02:13 PM
#56
6th Gear Member
Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
I just started using RP when I changed my cam covers. With only 45k miles I had noticeable wear on the cam lobes. Maybe wear is the wrong term since I didn't measure, but there is definite polishing of the lobes, so there must be some friction there. my car has been supercharged since 12,000 miles, so that may make a slight difference.
I've used mobil 1 5w20, 5w30 and for the last 20,000 or so miles pennzoil platinum 5w30.
I've used mobil 1 5w20, 5w30 and for the last 20,000 or so miles pennzoil platinum 5w30.
Last edited by moosestang; 05-14-2013 at 05:26 PM.
06-10-2013, 12:09 PM
#58
Join Date: Jun 2013
Location: IL
Posts: 1
Hi all,
I am a newbie, so please bear with me. So is it better to change out the oil to RP or other Synthetic Motor Oil, as soon as I get my Pony or should I wait until after the break in time (1000miles) or waith until the first recommended oil change.
Thank you!
I am a newbie, so please bear with me. So is it better to change out the oil to RP or other Synthetic Motor Oil, as soon as I get my Pony or should I wait until after the break in time (1000miles) or waith until the first recommended oil change.
Thank you!
12-10-2013, 12:58 PM
#59
1st Gear Member
Join Date: Dec 2013
Location: Ontario Canada
Posts: 74
I know this is an old thread, but I just ran across it. I have just called mobil1 tech support (# on the bottle) and the guy tells me that mobil1 has NO mineral,dino oil in its' base. He said it is 100% synthetic. Now I am confused even more. Just my $.02 Mark
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