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Excessive oil consumption - high mileage

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Old 09-28-2017, 06:02 AM
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Higher grade (thicker) oil is not a panacea for curbing oil consumption as there can be unintended consequences.

At normal engine operating temperatures 10W-30 "grade" oil is what the engine is designed to run on and provide the necessary oil flow for lubrication. Oil flow is critical. Since 5W-40 is an alternate that's fine too. Going to something higher if still in the normal engine operating temperature will not provide the oil flow needed to lubricate the rest of the engine. Engine temperatures in race cars can far exceed normal and require a higher oil grade.

I'd look at several different multigrades in the 5W-40 range. Mobil 1 is notorious for oil consumption which indicates to me there will be brands/formulations that have more oil control than average.

A catch can is dirt simple to add and will isolate breathers as an issue. There are some dual cans which will further pinpoint where the oil comes from. Won't be any in the cans, though, it if's going out the exhaust via the rings.

-- Chuck
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Old 09-28-2017, 06:43 AM
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Yup - probably a late-model S2000!

Lovegroova was pretty much in the same place mileage-wise when his engine let go. That's what he ended up doing.

Unless you have a penchant for Lotuses, or something...
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Old 09-28-2017, 06:44 AM
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Originally Posted by Nick Graves View Post
Yup - probably a late-model S2000!

Lovegroova was pretty much in the same place mileage-wise when his engine let go. That's what he ended up doing.

Unless you have a penchant for Lotuses, or something...
Mine was also starting to use a lot more oil than it had previously, perhaps taking it to Spa wasn't such a good idea?
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Old 09-28-2017, 08:38 AM
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Well, an 'Italian tune-up' will either kill or cure...

At least you found out for definite!
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