well i put 6 quarts of 5w20 in my engine every oil change,but back in the days i heard some guys saying that they ran with a quart low cause that gave them a few more horses.but i know for sure this(4.6)dont like a bit running low in oil,so could then now be better of with a quart more ratter.
Run the correct amount. The running a quart low was drag racing with a push rod motor. the crank would spin more free than cutting through a full pan of oil. Do not run the oil low. i am guessing we are talking about a 32 vale mod motor?
i think 6 is correct
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1988 coupe race car 2700lbs 366rwhp
1965 2+2 fast back 4 speed tri power
1968 gt/cs 347 5 speed
1970 mach 1 428scj 4 speed v code 410 rwhp stock
1990 gt drag car 780hp on motor
1994 gt, 1998 svt cobra
2003 svt cobra 456rwhp
I've run full synthetic in my cobra since day one and 150K miles later I'm happy to report the car runs like the day I got it...
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"Goose, Hollywood's fine, I want Viper"
1995 Mustang GT Cnv 347(427 stroker being built!) almost done!
1996 Cobra with Kenne Bell 2.1 Supercharger and every other conceivable part you can bolt on it...650hp upgrade in the works
2003 Infiniti M45 V8 340 hp...a methadone treatment for reformed Mustang drivers
i own a 99 cobra with 172k on it. the car has had religious oil changes i have worked at ford for 7 years and 6-6.5 qts is what the car takes. you run the risk of loosing oil psi due to low oil and the car doesnt like that do to fact that the timing chain tensioners run off oil psi. just get a windage tray.
gilomach you NEED to do this next oil change, SCRAP that 5W20 and use 5W30, 7 quarts bro, NOT 6 and HELL NO NOT 5, Our heads drain VERY slowly and at High RPM's lots of oil is stuck at the top of the motor, when running 7 quarts only 5 are gonna be in the pan at WOT, with 6-4! I've said this before there has been Numerous tests and picture verification that 7 quarts is the way to go with the stock pan in the 99-04 DOHC's. A Ford engineer ran one of our motors with clear plexi valve covers and oil pan to show how the oil behaves when the motor is turning high rpms.
This is getting to be common knowledge in the SVT World!
Hey gilomach throw in 6.75 quarts 5W30 with an 8 ounce bottle of Militec-1 next oil change. Your a fellow South Florida boy running 5W20? get it out it's TOO Thin!
and venumissvt a Windage tray is TOTALLY Unnecesary on our motors, the crank sits so high up in the block that windage isn't an issue even running 7 quarts, here is picture evidence to prove it. I'll include a pic at 6,7,and 9 quarts in in stock pan (note at 7 quarts the crank scrappers are STILL Exposed!).The crank will be sitting in ZERO oil even when the motor is turned off! http://img145.imageshack.us/img145/5651/6quarts.jpg http://img230.imageshack.us/img230/479/7quarts.jpg http://img257.imageshack.us/img257/636/9quarts.jpg
gilomach you NEED to do this next oil change, SCRAP that 5W20 and use 5W30, 7 quarts bro, NOT 6 and HELL NO NOT 5, Our heads drain VERY slowly and at High RPM's lots of oil is stuck at the top of the motor, when running 7 quarts only 5 are gonna be in the pan at WOT, with 6-4! I've said this before there has been Numerous tests and picture verification that 7 quarts is the way to go with the stock pan in the 99-04 DOHC's. A Ford engineer ran one of our motors with clear plexi valve covers and oil pan to show how the oil behaves when the motor is turning high rpms.
This is getting to be common knowledge in the SVT World!
Hey gilomach throw in 6.75 quarts 5W30 with an 8 ounce bottle of Militec-1 next oil change. Your a fellow South Florida boy running 5W20? get it out it's TOO Thin!
and venumissvt a Windage tray is TOTALLY Unnecesary on our motors, the crank sits so high up in the block that windage isn't an issue even running 7 quarts, here is picture evidence to prove it. I'll include a pic at 6,7,and 9 quarts in in stock pan (note at 7 quarts the crank scrappers are STILL Exposed!).The crank will be sitting in ZERO oil even when the motor is turned off! http://img145.imageshack.us/img145/5651/6quarts.jpg http://img230.imageshack.us/img230/479/7quarts.jpg http://img257.imageshack.us/img257/636/9quarts.jpg
Someone on here did a thread on this. I remember those pics. After seing that I started running 7 quarts instead of 6 1/2.
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haha yeah that was me yomadmike, it wasn't a thread it was a reply I made sometime ago about a guy asking this same question, the more SVT guys that know this the better!!
And 7 can be done in the 4.6L 2V (they use the same pan)but it really isn't necessary cause the cylinder heads don't have the same behavior.
2002 mustang with 4.6 stroker (5.0) with 32 valve 04 cobra heads stage 3 port, ford GT cams, jlt high boost cold air kit, whipple 3.4 ran at 21 psi (still low enough boost for pump gas) Kooks stepped longtubes and full 3" exhaust,mono blade throttle body, t56 viper spec tranny, twin disk spec clutch, sumped fuel tank, 8-an lines with twin 255's, 80lb injectors and all of cooling system upgraded. Thats just the performance mods.
Engine teardown tests were done on a number of 4.6L motors and it was noted that the ones running 5W20 had more scored bearings and signs of wear than those with 5W30, I'm just sharing what that I've been schooled on so just run your 5W20 it's your choice, I don't know of Any high tech Modular engine builders recommending 5W20? And at operating temps the former is a THINNER viscosity!
Engine teardown tests were done on a number of 4.6L motors and it was noted that the ones running 5W20 had more scored bearings and signs of wear than those with 5W30, I'm just sharing what that I've been schooled on so just run your 5W20 it's your choice, I don't know of Any high tech Modular engine builders recommending 5W20? And at operating temps the former is a THINNER viscosity!
I agree with this. The 5W-20 was to meet CAFE standards fleetwide. Militech, Militech, Militech. I believe in this stuff in my guns and my combustion engines.
I wasnt debating the fact it may lube better man i was just saying its the same thickness. I wasnt downing you dude you give out a LOT of good advice on here. and i will definitely consider the oil change
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2002 mustang with 4.6 stroker (5.0) with 32 valve 04 cobra heads stage 3 port, ford GT cams, jlt high boost cold air kit, whipple 3.4 ran at 21 psi (still low enough boost for pump gas) Kooks stepped longtubes and full 3" exhaust,mono blade throttle body, t56 viper spec tranny, twin disk spec clutch, sumped fuel tank, 8-an lines with twin 255's, 80lb injectors and all of cooling system upgraded. Thats just the performance mods.
I agree with this. The 5W-20 was to meet CAFE standards fleetwide. Militech, Militech, Militech. I believe in this stuff in my guns and my combustion engines.
+1000 Snake Pliskin on the Militec-1, my new motor is as quiet as a Lexus inside the cabin with the windows up, ZERO ticks, piston slap etc.. Bearings and friction surfaces LUV this stuff, it's used by the CIA, Secret Service, All US Armed Forces, Interpol in Europe, that pretty much says it all, haha!!
And thanks for the props Lightning, no worries! Just like Snake said Ford switched to 5W20 for a reason that had NOTHING to do with Lubricating the 4 cams, 32 valves and all it's hardware!
I run Valvoline SynPower 5W30 6.75 quarts with an 8 oz bottle of Militec-1 every other oil change!
how much oil is enough oil? 
