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  #13  
Old 02-03-2011, 07:39 PM
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Re: Oil change question

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Originally Posted by gregums79 View Post
lol gotta love marketing! I think RP is for more high performance and higher running temp engines. That plus the $8.99 a quart is making me go back to Mobile 1 or maybe even Castrol
Here's the combo: AutoZone & Advance Auto have sales with 5-qts of Castrol Syntec 5W-20 and Mobil-1 or K&N oil filter for $29.95. Then, go to Wally World and buy a 5-qt jug of Castrol Syntec 5W-20 for $21.00.

You need 7-7.5 qts, so there is oil available for makeup in-between oil changes and half of the amount required for the next oil change.

My HEMI likes the Castrol Syntec 5W-20 (uses less oil and the HEMI tick has diminished greatly). The 1" nut on the end of the K&N filter makes removal a breeze.
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Old 02-05-2011, 06:18 PM
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Re: Oil change question

Valvoline synpower is higher rated than Castrol and Mobil 1' Mobil 1 formulation is not what it use to be. I replaced RP with Synpower and it runs smoother and dont feel the mds like with RP. Make sure to get a GOOD oil filter too; i.e. NOT FRAM.
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Old 02-05-2011, 07:58 PM
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Re: Oil change question

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Originally Posted by gregums79 View Post
Yea the $8.99 RP price is out of control!! So the Castrol has been good to ya??

Yea I like Mobile 1 normally too, prolly going back!!

Do you notice a diff in your tires having nitrogen in them? I was thinkin about doin it too...
Must be nice $8.99 a quart.I have to run special oil in my GC 3.0 deisel and the only place I can buy it in Canada is at the dealer for $12.69 a quart.While I have heard you can buy it in the States at must auto part stores for $8.99.It needs 10.5 quarts per oil change that I do at 6250 miles.But when the diesel gives me 28.3 miles per gallon at 78 mile per hour the fuel savings make up for that I guess.I can get Amsoil for $12.89 per qt.I am sticking with the dealers oil for now so they can't weasal out of a warranty claim because of oil I used if it ever comes up.Mobil1 bulk oil dealers can't even get the oil yet up here in Canada.
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