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Old 06-16-2011, 01:31 AM   #4 (permalink)
Frank Lee
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Join Date: Jan 2008
Location: up north
Posts: 12,762

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
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Quote:
Originally Posted by Rusty Marina View Post
They now say 3000 mile oil changes are no longer needed with the newer oils and now we can go 5000 miles.

Anyone doing this and has anyone noticed better economy by switching to Synthetic oil ?

Maybe it's my old thinking but I still keep at 3000 miles despite the fact my service van is mostly highway miles.
None of this is new; it's been this way for decades but it appears nobody got the memo. Well, it does take a lot of work to crack open that Owner's Manual so we can hardly expect motorists to do all that. And there you are, you have the information and STILL you cling to the old spec for no other reason than... what? Habit? That's what Grandpa did?
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