Easy Tweaks and a question - Ford Mustang Forum
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post #1 of 5 (permalink) Old 02-08-2006 Thread Starter
MrYellowStang04's Avatar
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Easy Tweaks and a question

I am celebrating the Firs Anniversary purchase of the best car I have ever owned and enjoyed. A 2004 Screaming Yellow Mustang Convertible with 3.9L V6. I was experiencing slight hesitation, changing the air filter to a K&N made a world of difference. It's a difference of night and day and to think If I added cold air induction. as a plus mpg's has also increased. Now it's time to think about moving over to synthetic oil. Any suggestions as to oil and filter?


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post #2 of 5 (permalink) Old 02-09-2006
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It should already have a synthetic blend in it, it asks for SAE 5W-20 premium synthetic blend.

2004 3.9L/auto
-Mac CAI, 73mm Mass Air
-Dual Flowmaster 40s, H pipe, 2.25 in pipe
-42% Underdrive Pulleys
-SCT Tuned
-4.10 Gears & Trac-lok
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post #3 of 5 (permalink) Old 02-09-2006
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The drop in filter gives you the majority of the HP, probally 8-10. If you got a good cold air intake with it you have gotten and 4-5.

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post #4 of 5 (permalink) Old 02-11-2006
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Try Royal Purple 5w20. It can be harder to find but it is really good. I have used it in the past and love it. I will be converting mine to Royal purple on the next oil change. Goto Royal Purple's website and search for a retail location close to you.

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post #5 of 5 (permalink) Old 02-11-2006
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Originally Posted by tex117
The drop in filter gives you the majority of the HP, probally 8-10. If you got a good cold air intake with it you have gotten and 4-5.
nah, the drop-in is worth 5-6 hp, assuming everything else is in tune. With a good plastic CAI, you can pick up another 5-6, but you won't do any better than a total of 5-6 with a metal CAI.

Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
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