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Old 04-12-2006, 04:13 PM   #50
juno
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Join Date: Apr 2006
Location: Jupiter
Posts: 144
Re: Important Information About Mobile 1 Synthetic Motor Oil For Mach 1's

Ahhh, first, the manufacturers switched to 5w-20 mainly because of CAFE .(corporate average fuel economy). Don't let them tell you anything else. Maybe they claim some other benefits, but CAFE is the main reason for the switch.

I live in a hot climate (south Florida) so I use 5w-30 RP.

They can't void your warranty for using something other than 5w-20 as long as it is API certified. The dealer can try to tell you different, but have him show you where it says that in the Magnuson-Moss Act.
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