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Old 02-21-2008, 10:26 PM   #1
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1989 34.5' Airstream 345
waynesboro , Virginia
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345 oil capacity

Just changed oil, plugs, and added a k/n filter.... i thought 6 quarts would do the trick... but still read very low on the dipstick so i added about another 1/2 to 3/4 a quart and got a reading in the safe zone.... Just wondering if anyone else adds this much??? I wouldnt suppose the dipstick is not going all the way in... never really had that problem with anything else. Moho is a 89 345le w/a 454. oil pressure reads about 3/4 on the guage... where does most everyone elses read??
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Old 02-22-2008, 12:33 AM   #2
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hi swingin'

how 'stock' is the 454 ?

what size (length) oil filter are u using?

as i recall, mine was typically twice as long as the stock 454 filter and took about 1.5 pints of extra oil...

later i added an additional oil cooler, again the cooler and hoses increased the oil capacity.

i'm pretty sure the fluid capacities was/is in the a/s owners manual, but became irrelevant after modifications.

no recollection of the oil pressure readings....

cheer
2air'
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Old 02-22-2008, 10:27 AM   #3
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1986 34.5' Airstream 345
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The dip-stick on our '86 345 has higher markes added to the stock unit. An oil change with filter takes 7 quarts.
Rob
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Old 02-25-2008, 04:25 PM   #4
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our 90 345le w/454 has the amsoil kit. I've always presumed the oil pan has a deeper than stock sump because when changing oil, filter and by-pass filter it takes 11 quarts. The first time I serviced it after adding the 8th. quart I kept looking underneath to see if oil was pouring out but that was about 12,000 miles and two oil changes ago and all is well. I do have sending unit on my must-change list as guage pegs soon after start up.
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Old 08-22-2008, 06:15 PM   #5
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Fill her till she,s full then count the empty jugs!
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Old 08-23-2008, 12:14 PM   #6
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Quote:
Originally Posted by swinginping View Post
Just changed oil, plugs, and added a k/n filter.... i thought 6 quarts would do the trick... but still read very low on the dipstick so i added about another 1/2 to 3/4 a quart and got a reading in the safe zone.... Just wondering if anyone else adds this much??? I wouldnt suppose the dipstick is not going all the way in... never really had that problem with anything else. Moho is a 89 345le w/a 454. oil pressure reads about 3/4 on the guage... where does most everyone elses read??
swinginping- i recently changed the sending unit on the 345/454 now guage shows steady 63 or so psi which would also be about 3/4 on stock guage.
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Old 08-23-2008, 12:16 PM   #7
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Fill her till she,s full then count the empty jugs!
sounds like the morning after of days gone by.
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Old 08-23-2008, 01:26 PM   #8
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my 77 argosy MH with 454 took 11 quarts with filter change, but it also has an oil cooler (hoses run up to a mini radiator in the front)

-Matt
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Old 08-23-2008, 01:38 PM   #9
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my 77 argosy MH with 454 took 11 quarts with filter change, but it also has an oil cooler (hoses run up to a mini radiator in the front)

-Matt
Matt- Our 454/MH also has the added oil cooler which I forgot to mention in above post. Being in southwest USA I'm glad to have anything that will help cooling/lubrication. Like yours, 11 quarts is capacity on mine also.
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