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04-16-2012, 01:38 AM | #101 |
MMM, SHAKER!!!
Join Date: Aug 2008
Location: Texas
Posts: 539
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Re: switching from mobil 1 to Royal Purple
Ash, you being in Texas now atleast use 5w30. My valve train quieted down significantly when I switched to 5w30. 5w20 was only spec'd by Ford to get a better CAFE rating.
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2003 TR Mach 1 5-Spd Non-IUP #108 of 9652 Dyno tuned, C&L 85mm CAI, MRT Catted H, Mac SS Catback, JLT Oil Separator, MGW Short Throw/Orange handle, Rich1's Shaker Air Diverter, Fiore Clutch Quad/FWA, AFS Mach 1 MAC Black Replicas 17X9/10.5, Nitto NT555 G2's in 275/315, Steeda (Sport Springs, Bumpsteer Kit and X2's), Tokico Blues, 2003 Cobra Clutch, Explicit Auto's Aluminum Finish Retro Rings, IUP upgrades, Craig's No Drill LP Bracket, MGW Satin Finish Interior Bling, Web Electric Sequentials |
04-16-2012, 03:19 AM | #102 |
Air Power!!
Join Date: Jun 2007
Location: SHAW AFB SC, Columbia SC
Posts: 654
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Re: switching from mobil 1 to Royal Purple
I was joking btw heh. I run the 10/30 because my Mach sits in a heated Garage at all times. With 5/20 the engine used to make too much noise, after the switch the engine is a lot less noisy and if it wasnt for the exhaust system you would even know it's on heh.
The car runs a little too smoothly for my tastes heh, would love a stroker motor but that's off topic. Here in the South, SC we have all four seaons and honestly the cold seasons arent cold enough to worry about a lighter weight oil but the summer season does cause a small problem as 5w get's pretty thin all too often. I did an oil change 2 weeks ago and the Royal Purple that came out was 10/30 and the engine was a bit hot as I had issues trying to get the dang car onto the ramps. When it started dripping into the pan it was extremely thin. At oil changes I open the drain plug and once the old oil is stopped I start pouring in that Ford brand oil (motorcraft? the cheap stuff) until I see nothing but gold coming out of the drain and I was a bit taken aback when I saw the difference between the slightly hot old oil viscosity and the flush oil which was about 95 degrees plus whatever the engine added as it went through.
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2013 Grand Sport Corvette. 3LT, 60th Anniversary, Dual-mode performance exhaust, GS Chrome Wheels, A6 Paddle-shift, Cyber Grey Metallic, Titanium interior, Targa. 2003 DSG MACH 1 3650 IUP. 2008 Tiburon GT limited-Metallic Black-Sleeping w/ the enemy. 2004 Mustang GT-Red-Sold 2001 Mustang- Forest Green-Sold Disabled Veteran United States Air Force. Hoorah Air Force! |
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