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4.7L/4.7L HO/4.7L Gen II Engines Questions regarding the 4.7L V8 engine

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Old 07-16-2006, 01:30 AM
Reacher Reacher is offline
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4.7L owners... 5w-30 or 10w-30?

I just changed my oil (M1 with Wix) and was wondering if you guys stay with the suggested 5w-30 during the summer of if you change over to 10w-30. The manual says that for best fuel economy use 5w-30. I live in Dallas so it never gets much below about 20F in the winter and in summer it's hot as f**k.

Anyone.. anyone... Bueller.. Bueller..
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  #2  
Old 07-16-2006, 01:33 AM
2k2dakotaman 2k2dakotaman is offline
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i have been puttin 10w30 in it since i had my truck and shes bout to hit 170,000
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  #3  
Old 07-16-2006, 01:55 AM
DurangoMan47 DurangoMan47 is offline
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I've always used 10w30 without issue and my latest MPG was 18.7 so I dont think I'm taking a hit in the MPG dept.

Rick
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Old 07-16-2006, 03:15 AM
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10w30 mobil 1 synthetic.

24 mpg highway consistantly

Paul
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Old 07-16-2006, 03:32 AM
wicks01dur wicks01dur is offline
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i run 5w30 mobil1 and mopar filter year round 90-100f summer and 20-30f winter no probs :biggthump
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Old 07-16-2006, 05:17 AM
chris4x4 chris4x4 is offline
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Im in Hell and I run 5w-30. seems to run fine. With the tight tolerances of new motors, I think its best.
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Old 07-16-2006, 05:58 AM
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Mobil 1 5w30 with Purolator Pureone filter. usually 20-22 mpg
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  #8  
Old 07-16-2006, 06:09 AM
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Garage
5w30 mobil one
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  #9  
Old 07-16-2006, 07:08 AM
Super Dave Super Dave is offline
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5w-30 usually Mobil 1. But sometimes its whatever synthetic WalMart has on sale. And always a Ford (Purolator)FL1A filter.
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  #10  
Old 07-16-2006, 06:46 PM
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Royal Purple! I run 10W40 cause I've got 100K+ and I think it helps to cusion better. Who knows. I run Royal Purple cause Napa Employee's get it cheap!
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  #11  
Old 07-16-2006, 07:12 PM
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5w-30 vs 10w-30 Viscosity Thread - Amsoil Forum FAQ BLOG - Steven Roark Amsoil Dealer

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Quote:
Originally Posted by Reacher
I just changed my oil (M1 with Wix) and was wondering if you guys stay with the suggested 5w-30 during the summer of if you change over to 10w-30. The manual says that for best fuel economy use 5w-30. I live in Dallas so it never gets much below about 20F in the winter and in summer it's hot as f**k. Anyone.. anyone... Bueller.. Bueller..
You can use the 5w-30 year round (I do) - as the "5w-" and the "10w-" are both 30 wt. oils at running temperature. Here is a VISCOSITY INFORMATION THREAD that I created on this website. For more information you can click this LINK.
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Information and Answers To Your Questions are in the AMSOIL FORUM (link) on this website.

Visit AMSOIL = American-Synthetic-Oil (link) to Request a FREE AMSOIL CATALOG.

Thank You, Steven Roark, AMSOIL DEALER # 1061837, Proud Sponsor of www.Dakota-Durango.com

Synthetic Motor Oils, 2-Cycle Oils, Transmission Fluids, Filters, Gear Lubes, Industrial & Speciality Products

Last edited by Amsoil Dealer; 07-16-2006 at 07:14 PM.
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  #12  
Old 08-08-2006, 08:39 AM
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Amsoil SAE 5w-30 and 10w-30 is only $5.25 quart (when ordering a case) + shipping

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Amsoil is much lower priced than you might think ...

Amsoil SYNTHETIC SAE 5w-30 is only $5.55 per quart

$5.55 is the Amsoil Preferred Customer Price (wholesale), and since I am paying
for the Amsoil Preferred Customer Memberships (see below) - that is your actual cost.

Even cheaper by the case. The price drops to $5.25 per quart.

The same oil, Amsoil SAE 5w-30, is $7.05 Suggested Retail .

DON'T PAY RETAIL ! ... Buy WHOLESALE !!!
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Here is the thread where I offer to pay for the FREE Amsoil Preferred Customer Memberships:

FREE AMSOIL PREFERRED CUSTOMER MEMBERSHIP OFFER (like joining a COSTCO) and WHOLESALE PRICES
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---------------------
Information and Answers To Your Questions are in the AMSOIL FORUM (link) on this website.

Visit AMSOIL = American-Synthetic-Oil (link) to Request a FREE AMSOIL CATALOG.

Thank You, Steven Roark, AMSOIL DEALER # 1061837, Proud Sponsor of www.Dakota-Durango.com

Synthetic Motor Oils, 2-Cycle Oils, Transmission Fluids, Filters, Gear Lubes, Industrial & Speciality Products
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  #13  
Old 08-24-2006, 03:52 PM
rimfire,22 rimfire,22 is offline
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Quote:
Originally Posted by Reacher
I just changed my oil (M1 with Wix) and was wondering if you guys stay with the suggested 5w-30 during the summer of if you change over to 10w-30. The manual says that for best fuel economy use 5w-30. I live in Dallas so it never gets much below about 20F in the winter and in summer it's hot as f**k.

Anyone.. anyone... Bueller.. Bueller..

Reacher,

I just use 5W-30 recommended in the manual. Of course I use a synthetic oil.

rimfire,22
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  #14  
Old 08-29-2006, 03:54 AM
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doesnt matter what you use as when it heats up both is still a 30 weight oil. its just how well it flows in cold temerature thats all. the 5w will flow better at colder temps than a 10w oil
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  #15  
Old 08-29-2006, 05:50 AM
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Hellfire Hellfire is offline
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I use 5w30 all year round for my 4.7 and my 3.9. Since it gets cold up here.
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