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post #21 of 38 (permalink) Old 12-29-2013, 03:53 AM
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Originally Posted by speeedi View Post
My 2005 Prius with 180K miles is using a quart of oil every 2K miles. Has anyone had experience with this?
This just happened on our 2004 Prius at 172,500. Dealership stated this is a problem for Prius' with > 120,000. Dealership replaced a PVC(?sp) valve and said to bring it back in a 1000mi. After the dealership worked on the car, it is getting significantly better gas mileage. The bad news is that one possibility is to replace the engine at around $5600-6000.
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post #22 of 38 (permalink) Old 02-07-2014, 11:04 PM
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I have a 2004 Prius with 145,000 miles on it.
I religious change my oil every 5K, and at 130,000
oil change I noticed for the first time it was down
signify about a quart. The following two oil changes
has now resulted in being down almost a 1 1/2 qts.
each oil change. Anyone have any ideas what has
changed or failed on this engine ? No leaks apparent.
Is it just piston ring failure ?
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post #23 of 38 (permalink) Old 02-07-2014, 11:12 PM
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Am I wrong, I thought the engine brake helps create faster battery charging thus showing
more of those km (miniature cars) on your mpg 5 minute tracker and raising the charge levels to different colors on the battery bar gauge.
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post #24 of 38 (permalink) Old 02-07-2014, 11:18 PM
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Hey Pete,

Thanks for the info. We are very simular in maintenance and mileage on our Prius's.
See my posts on the subjects.

Good Luck, src.com
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post #25 of 38 (permalink) Old 02-08-2014, 09:08 AM
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Originally Posted by src.com View Post
Am I wrong, I thought the engine brake helps create faster battery charging thus showing
more of those km (miniature cars) on your mpg 5 minute tracker and raising the charge levels to different colors on the battery bar gauge.
Wrong. Engine braking wastes energy. Regenerative braking will increase mileage.
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post #26 of 38 (permalink) Old 05-13-2014, 10:11 AM
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Default 2008 Prius burns 2.8quarts every 1200 miles!

Just found this forum. I have 173,000 miles on my vehicle and just finished a series of oil consumption tests whereas I return to dealer to check oil levels every 1200miles. It consistently loses almost 3 quarts every time!
I have religiously serviced my vehicle at Toyota service centers and always changed oil every 5k.
Service adviser tells me it's time to decide on a new vehicle or spend an estimated $3,000 to repair.
Toyota needs to address this issue with their loyal customers. Well maintained engines should not need this level of repairs this soon.

Fix this Toyota! (voluntary recall), or I will be buying a new vehicle alright. And it will NOT be another Toyota!
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post #27 of 38 (permalink) Old 08-19-2014, 05:42 PM
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Default 2010 Prius using 1 quart per week (500 miles +/-)

I have a 2010 Prius IV with 116,000 miles. At about 90,000 miles, oil consumption rapidly increased. When I finally realized that the yellow triangle on the dashboard means low oil, (the diagnostic panel said "low engine oil pressure") the car was down 3 1/2 quarts. I brought it to the dealer the following day. I have owned a Landcruiser for 15+ years and it has never used a teaspoon of oil. What's up with the Prius?
The dealer acted very concerned - said that they had never seen this. I now see from this forum that this is a lie. We did three oil consumption tests, with anywhere from 1/2 to 1 quart per 500 miles for a 2,000 mile test period. They suggested that I need to either rebuild engine, for low $2800 to high $5,300 or trade it in. They cannot identify a location of oil leakage, and showed me burn residue on spark plugs. They had a factory rep come look at car during one test period. Unfortunately, he was no help to me. We have never seen any smoke emitting from the exhaust pipe.
The first scheduled tune up for this car occurs at 120,000 miles. We use synthetic oil, and have changed oil religiously every 10,000 miles. I am deeply disturbed that I'm told to rebuild the engine (at a profit to the local Toyota dealer) prior to my even getting to the first scheduled tune up!
Toyota has offered to give me parts at 30% off list, and will "loan" me a car during the rebuild period. This does not seem like enough to me. Granted, owning a car is a crap-shoot, but this experience does not speak well of current day Toyota's.
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post #28 of 38 (permalink) Old 08-21-2014, 04:54 AM
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Well I began to observe it, closely and found that I am requiring to add about 1.5 qt. every 1600 kilometers. This is vastly different than my before experience as I am the original proprietor and have always managed the vehicle according to the manufacturers specifications and formerly i never required any oil at oil change time.
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post #29 of 38 (permalink) Old 09-22-2014, 01:43 PM
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I have a 2008 prius with 230,000 miles on it. I started noticing low oil issues around 150,000 miles where I would be a couple of quarts low at my 5,000 mile oil change interval. I have periodically checked for leaks and have not found any. I am now having to add at least a quart every 1,000 miles and am beginning to believe this is just a issue that's not uncommon. I started changing the oil with a high mileage oil and using a 10w30 weight to see if that helps. I will soon find out being that we drive around 120 miles a day.
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post #30 of 38 (permalink) Old 09-22-2014, 04:03 PM
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Just a comment, but I would watch the oil level closely (check it more frequently); because the crankcase capacity for the ICE is only 3.7 quarts.
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