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Old 12-11-2001, 10:28 AM   #13
Scooby Guru
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
04 FXT


Also, Syntec Blend is probably thicker at higher temps than
Mobil 1. If you look at the manufacturer spec sheets, you'll see that even 5W30 GTX has a thicker viscosity at 100 dec. C than Syntec Blend or Syntec. Must be the parrafin wax that makes it thicker.
Why would you go from a synthetic to a blend anyway? Especially in the winter. If you want Castrol synthetic, use Syntec.

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