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"MPGiata" modding thread: aiming for 50 MPG with a 1990 Miata. Update: success, 55 MPG!
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11-21-2020, 07:19 PM
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wdb
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Join Date: May 2008
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PlainJane
- '12 Toyota Tacoma Base 4WD Access Cab
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Sounds like the oil control rings are shot. That would show up more during deceleration, when the compression rings aren't doing their thing.
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