help with oil change 1973 Eldorado - Cadillac Forum - Enthusiast forums for Cadillac Owners


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Old 04-20-2017, 10:56 AM
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Default help with oil change 1973 Eldorado

I've got a 1973 Eldorado convertible I'd like to do an oil change on. After getting under the car, it looks like there are two drain plugs. I'm not sure if they are both for engine oil or one if for the transmission. Did this car even have a transmission drain plug? I don't want to pull off the wring drain plug.
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Old 04-20-2017, 01:19 PM
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There are 2 drain plugs because oil pump is a front engine, and output shaft runs under oil pan. There shouldn't be much oil coming from front sump. Most of the oil will come from rear sump.
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Old 04-20-2017, 03:30 PM
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THank you for the info! I just got done changing the oil and you were right about the front not having too much. Piece of cake and now comfortable doing my own in the future.
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