Loss of oil


Asked by Oct 18, 2014 at 10:58 AM about the 1965 Ford Thunderbird

Question type: Maintenance & Repair

Crusing at 70mph for 200mi I will loose 2qt of oil not smoking from exaust & when parked no puddle of oil on ground?  390 engine

2 Answers

Tom Demyan

Check your valve cover gaskets and rear main seal. Look for oil on the engine and or trans. You might also be burning it, but enough not to cause a cloud out the exhaust.

Best Answer

A qt/100 miles should have some obvious traces as to where it's going. If the valve covers are leaking, you would see oil on your engine. If the rear main seal is leaking, you should see oil spots on the ground when you park your car. You don't say how many miles are on the car but my guess would be leaking valve guides and it is burning it. When a car burns oil, the driver doesn't always see any smoke out the exhaust but if you can get someone to follow you, they may see it but even then, there may be no trace our the exhaust.

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