Low Compression & Oil Consumption
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Driver
Joined: Feb 2014
Posts: 134
Likes: 6
From: California
Yes. We do have a Loaner Car and always have had one each time we left the LS for some work.
Our local Lexus Dealer has always been upfront, honest and very good customer service & support.
Our local Lexus Dealer has always been upfront, honest and very good customer service & support.
Thread Starter
Driver
Joined: Feb 2014
Posts: 134
Likes: 6
From: California
I think sometimes that depends also on the manufacturer.
I know from experience BMW will not warranty anything once the warranty expires. A few friends had Lexus Extra Care still take care of them even though their cars were 5k miles out of warranty.
I know from experience BMW will not warranty anything once the warranty expires. A few friends had Lexus Extra Care still take care of them even though their cars were 5k miles out of warranty.
Rookie
Joined: May 2023
Posts: 40
Likes: 2
From: ON
So, the dealer's claim is it went through 5 quarts of oil in 4K miles.
Skepticizm...I haz sum.
I mean, I cannot imagine a Lexus dealer not putting 9 quarts plus a little back into the engine, but strange things happen.
Standard compression pressure: 1400 kPa (14.2 kgf/cm2, 203 psi) or more
Minimum pressure: 980 kPa (9.9 kgf/cm2, 142 psi)
They should have done both a 'dry', which is what it sounds like they did, and a 'wet' compression test. The 'wet' one adds a little oil into the cylinder before doing it, so as to determine if the reason is worn rings or cylinder damage. Being as you reference a leak-down test, you probably know this, but I just wanted to throw it out there.
All of them are low, which I can't believe you couldn't feel as a lack of power, but if the car is driven gently, it may go unnoticed.
Let me put a few brain cells on it, because this is a tough call.
edit: How much oil does this engine consume between changes, historically? How often between said changes, under your ownership? How long/how many miles since you bought it?
Skepticizm...I haz sum.
I mean, I cannot imagine a Lexus dealer not putting 9 quarts plus a little back into the engine, but strange things happen.
Standard compression pressure: 1400 kPa (14.2 kgf/cm2, 203 psi) or more
Minimum pressure: 980 kPa (9.9 kgf/cm2, 142 psi)
They should have done both a 'dry', which is what it sounds like they did, and a 'wet' compression test. The 'wet' one adds a little oil into the cylinder before doing it, so as to determine if the reason is worn rings or cylinder damage. Being as you reference a leak-down test, you probably know this, but I just wanted to throw it out there.
All of them are low, which I can't believe you couldn't feel as a lack of power, but if the car is driven gently, it may go unnoticed.
Let me put a few brain cells on it, because this is a tough call.
edit: How much oil does this engine consume between changes, historically? How often between said changes, under your ownership? How long/how many miles since you bought it?
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