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Author Topic: Oil capacity  (Read 4986 times)
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wwheeler
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« on: 06/18/08 08:49 PM »

I have a 2007 Avalanche LT with 5.3 engine, book says 6 qts but that puts the level about 1/2 inch above the hash marks on dip stick. If left there the oil pressure is very erratic at interstate speed, if I drain about 1/2 qt out pressure will be steady at 40 psig. Anyone else have this problem ? Thanks in advance.
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WILDFIRE
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« Reply #1 on: 06/19/08 12:40 AM »

welcome to the club wwheeler
40psi at highway speed seems low, I'd check with the dealer to be sure you had the right dipstick 
« Last Edit: 06/19/08 12:42 AM by WILDFIRE » Logged

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« Reply #2 on: 06/19/08 04:32 AM »

Should be 6qts with new filter?

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wwheeler
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« Reply #3 on: 06/19/08 03:06 PM »

Took my truck to dealer today, had them change oil and filter, verify I had the correct size filter, made sure all oil was drained, checked the dipstick against two other 07's they had on used car lot. All this checked out, then they put in 5 qts, ran engine and checked level it was low, added 1/2 qt ran engine again and checked it was right on the full mark. So it looks like my 5.3 engine holds 5.5 qts. I guess I'm happy !
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WILDFIRE
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« Reply #4 on: 06/19/08 03:10 PM »

that's odd, but at least you can rest easier now
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Rocky07
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« Reply #5 on: 06/19/08 03:35 PM »

My '07 has never held but a smiggin over 5.5 quarts either, with a new filter (PF48), after running it warm, and letting it sit til it drains down.  Six quarts puts the level at least 1/4 inch above the full line.  I always use just over 5.5 qts and drink the last 1/2 qt.  And, mine reads about 45 psi crusing at 55 mph after its fully warmed up and goes to just under 60 psi under hard acceleration.
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« Reply #6 on: 06/19/08 06:21 PM »

  I always use just over 5.5 qts and drink the last 1/2 qt. 

Damn, how come I never thought of that!!  Have the same issue with my 4.5+ quart Hondas, too...and none of my engines burn any oil. Damn.....what a great idea!
« Last Edit: 06/19/08 06:25 PM by ltxi » Logged

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« Reply #7 on: 06/20/08 11:49 AM »

Damn, how come I never thought of that!!  Have the same issue with my 4.5+ quart Hondas, too...and none of my engines burn any oil. Damn.....what a great idea!

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'07 LTZ Avalanche-"Rocky II"
'02 Z71 Avalanche-"Rocky I"
'64 1/2 Mustang Rag-top
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'68 Mustang Coupe (under restoration)
'80 John Deere 2040
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