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  #1  
Old 07-19-2008
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Synthetic Oil

I know I want synthetic oil since thats what I have been using.

I am gonna start changing my own oil to save some money and wanted some opinons.

Form what I have heard Mobil 1 is some of the best stuff you can get. From what I have looked up Royal Purpel seems to be a thin oil. So I might stay away from that.

My question is what weight oil should I use? What is the advantages to one over the other? My truck has 71k on the ticker.

Thanks,

Jake
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Old 07-19-2008
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I don't know of Mobil1 is the best but it's worked great for me. I change at 7500 and looks the same as it went in. I'm currently using the Extended Performance where you can change at 15000 miles, I just hit 5 on it the other day so I'm gonna change the oil filter and see what it looks like. At 10k I'm gonna send some away for a oil analysis.
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Old 07-19-2008
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Quote:
Originally Posted by 04blackedge View Post
I don't know of Mobil1 is the best but it's worked great for me. I change at 7500 and looks the same as it went in. I'm currently using the Extended Performance where you can change at 15000 miles, I just hit 5 on it the other day so I'm gonna change the oil filter and see what it looks like. At 10k I'm gonna send some away for a oil analysis.

Be careful not to fall into the Scamsoil extended oil change scenario! Keep in mind, a UOA will not pick up on oil sludging, the biggest problem with extended oil change intervals.
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Old 07-19-2008
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im using castrol syntec, been in there 4500 miles and it looks pretty close to what it was when i put it in, got some black to it bc it cleans the engine, also put some of the restore stuff in there, cleared up my rough idle, couldnt hurt anything
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Old 07-19-2008
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Mobile one full synthetic for the win and a mobile one filter, 4 qts and a qt of lucas synthetic stabilizer do sh*t right jake have I not taught you anything
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  #6  
Old 07-19-2008
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How much does that stabilizer do? I'm about to change out my oil and put some synthetic in.
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Old 07-19-2008
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I lived in Coloardo for 20 years jake... any syn. in a 10w-30 or the engine recomended 5w-30 in the winter...

Note: a thinner oil or lower viscosity will produce a slightly better fuel economy...

Mobil has a new 0w-20 "GREEN" oil...

I would never go over 5K changing oil...

O yeah ask the parts store for those window oil changing stickers I get them free...
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Old 07-20-2008
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Originally Posted by seth556 View Post
How much does that stabilizer do? I'm about to change out my oil and put some synthetic in.
I have noticed a difference its not cheap but it helps I dont change my oil without it anyway give it a shot see what you think for yourself and let me know the results
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Old 07-20-2008
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I wouldn't know...Castrol GTX is the only stuff I put in any of my vehicles
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Old 07-20-2008
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I used Motorcraft oil at 3k, and 6k, After I decided to keep the Ranger for a long time I switched to Mobile 1 fully synthetic; Just turned over 30k on my 04, 4.0. Honesty I cant tell much of a difference but piece of mind on my part. Still change it at 3000k even with fully syn. Mobile 1 fully syn is a tried and true oil. Ive basicly used Mobile 1 most of the 14 years ive been driving. Just use oil type your engine calls for, it should say on your oil filler cap.
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  #11  
Old 07-20-2008
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Oil type and weight should be 5w30
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Old 07-20-2008
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Once a motor has 20k miles on it. I always use 10w-30 mobil 1 and change the oil.filter at 5k miles.

Last motor I tore down had zero sludge or coking on anything. (lifters tend to get coked first)

Rich
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Old 07-20-2008
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I go a minimum of 5-7k on an oil change. The whole 3,000 mile thing is a waste of money, especially with synthetic.
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Old 07-20-2008
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Quote:
Originally Posted by FireRanger View Post
I go a minimum of 5-7k on an oil change. The whole 3,000 mile thing is a waste of money, especially with synthetic.
I agree with you there.

Thanks for the input guys.
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  #15  
Old 07-20-2008
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I use Mobil 1, 5w30, every six months regardless of mileage. I don't put many miles on, but changing every six months is my plan.
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  #16  
Old 07-20-2008
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I use that Mobil 1 5w30 Truck and SUV and so far so good.
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  #17  
Old 07-20-2008
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i am using mobil 1 and changing the oil every 6 months... that is only about 1-2k miles of driving but i want it to stay fresh
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  #18  
Old 07-20-2008
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Yes, oil changes are recommended by Ford, every 5,000 miles or six months, whichever comes first.
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  #19  
Old 07-20-2008
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I use Mobil 1 Truck & SUV 5w-30, and a Motorcraft filter. You can use any 30wt oil - 0w-30, 5w-30, 10w-30.
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  #20  
Old 07-20-2008
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I think I am going to try the Mobil 1 synthetic. It seems like everyone on here has been pretty happy with it.
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  #21  
Old 07-20-2008
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Last time I bought it, Wal*Mart had it on sale for around $20-22 for a 5 quart jug. With the recent run up in oil prices, I don't know what they are charging for it today.
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  #22  
Old 07-20-2008
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If you're short tripping your engine, running less then 10 miles per drive, it's never going to burn off the moisture in the oil, synthetics can't help that.
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  #23  
Old 07-21-2008
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I run 10w-30 mobile one full synthetic. i like it. I dont know, i know they make oils for extended mileage, but i dont like the idea of leaving anything in there for more than 5k miles
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  #24  
Old 07-23-2008
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I changed it today. I used Mobil 1 Truck & SUV full synthetic. I got a Napa gold filter. I hear they are the best filters you can buy.
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  #25  
Old 07-24-2008
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actually the k&n oil filters last a while, i dont have to change mine too often and the 1" socket on the end makes it that much easier, i usually go 6K before i change the filter, when i do an oil and filter change it costs me though but its worth it. and i think the 3000 mile thing was just put out there to make you spend more money.
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