View Poll Results: Preferred Oil Viscosity
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Oil Viscosity
Don't forget about howard coleman's oil thread on ZDDP from last year. That is another thread you guys should read if you're willing to post this thread out to 7 pages.
that's why i run VR1 Racing 20w-50 .. its already ZDDP added
http://www.valvoline.com/pages/produ...asp?product=50
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both Mobil 1 EP 15w-50 and Amsoil 20w-50 have high zinc dosages, another reason I use them
Mobil 1 15w-50 has 1200 ppm
http://www.mobiloil.com/USA-English/...duct_Guide.pdf
according to BITOG, independent VOAs have confirmed the higher dosage
Amsoil claims "heavy treatment of zinc" but does not give a concentration
http://www.amsoil.com/storefront/aro.aspx
Valvoline VR1 20w-50 is apparently 0.14%
http://www.valvoline.com/products/VR...otor%20Oil.pdf
Mobil 1 15w-50 has 1200 ppm
http://www.mobiloil.com/USA-English/...duct_Guide.pdf
according to BITOG, independent VOAs have confirmed the higher dosage
Amsoil claims "heavy treatment of zinc" but does not give a concentration
http://www.amsoil.com/storefront/aro.aspx
Valvoline VR1 20w-50 is apparently 0.14%
http://www.valvoline.com/products/VR...otor%20Oil.pdf
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