Mobil 1 - How often?

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08-18-09, 05:51 PM

#16

QwkSC

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Quote:

Originally Posted by tcrow31

Mobile 1 Full Synthetic and Royal Purple Synthetic are totally different. Mobile 1 Synthetic is actually conventional three oil and not real synthetic like it used to be. There was a lawsuit between Mobile and Castrol a while back when Castrol started calling conventional three oil synthetic. Mobile lost the lawsuit and decided themselves to jump on the bandwagon of calling conventional three oil synthetic since it is much cheaper to produce and they can still sell it for the same high price.

+1, They started making inferior oil and didn't even drop the price

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08-18-09, 07:32 PM

#17

lemmiewink

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Quote:

Originally Posted by xknowonex

Mobile 1 and other mainstream synthetic brands are like $21 for a 5 quart jug at Wal-Mart.

It is definitely cheaper than smaller brands like Royal Purple and Amsoil

Again.... make sure that the "synthetic" brands fall into either grp IV or grp V oils. Otherwise they are grp III and below which is not true synthetic. Royal purp and amsoil are grp V ester based oil.