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Differences between Mobil 1 15W-50 and V-Twin 20W-50

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Differences between Mobil 1 15W-50 and V-Twin 20W-50

Old 03-11-2012, 05:53 PM
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Default Differences between Mobil 1 15W-50 and V-Twin 20W-50

What are the real differences between Mobil 1 15W-50 and V-Twin 20W-50. I saw that advance has the V-Twin on sale. My application is a twin turbocharged carbureted BBC with a flat tappet hydraulic cam. Is there a better fully synthetic oil out there that is a little cheaper. It kinda stings when I think that a full oil change is going to cost me $180.00 a couple times a year. If I have to I will. I know the price to play, just trying to lessen the sting!!!
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Old 03-11-2012, 07:29 PM
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the v twin oil still has zink&phosferous in it,the regular mobil 1 does not,with a flat tappet cam you need the additives to keep the cam lobes from going flat.i use the brad penn 20w50 oil,it also has the additives.it is about 4.50 per quart.
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Old 03-11-2012, 07:35 PM
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also the the v-twin oil has a higher effective temp stability , or it can get hotter and still be worth a chit
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Old 03-11-2012, 08:26 PM
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Originally Posted by mike tkach
the v twin oil still has zink&phosferous in it,the regular mobil 1 does not
Really, none??? 15w-50 still has a lot of both.

http://www.mobiloil.com/USA-English/...duct_Guide.pdf

Last edited by Rookie; 03-11-2012 at 08:36 PM.
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Old 03-11-2012, 10:09 PM
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The new mobil 1 has reduced zinc etc then it used. The vtwin is excellent. Breakdown starts at twice then temps as regular oils since it operates in oil cooled engines.
Brad penn oils are excellent as well and a lot less expensive.
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Old 03-11-2012, 11:06 PM
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How about the z-rod oil from amsoil in 20-50?
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Old 03-11-2012, 11:30 PM
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Originally Posted by mike tkach
the v twin oil still has zink&phosferous in it,the regular mobil 1 does not,with a flat tappet cam you need the additives to keep the cam lobes from going flat.i use the brad penn 20w50 oil,it also has the additives.it is about 4.50 per quart.
Tyler Crockett also recommended the Brad Penn to me, i`m gonna have to try it this year...
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Old 03-12-2012, 03:51 PM
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Originally Posted by Rookie
Really, none??? 15w-50 still has a lot of both.

http://www.mobiloil.com/USA-English/...duct_Guide.pdf
That was gonna be my response as well. All oil has some zinc and phosphorus in it, it has to, otherwise it would be useless! Zinc and Phosphorus are antiwear additives, however, too much of either one can have adverse effects on catalytic converters.
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Old 03-12-2012, 04:57 PM
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how about castrol 20w50
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Old 03-12-2012, 05:42 PM
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Originally Posted by mike tkach
the v twin oil still has zink&phosferous in it,the regular mobil 1 does not,with a flat tappet cam you need the additives to keep the cam lobes from going flat.i use the brad penn 20w50 oil,it also has the additives.it is about 4.50 per quart.
Is this based on some sort of fact, or is it more info from your super top secret tweaker source?
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