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Discussion Starter #1
All,

When I start driving my IS350, i get an indicator light and message on my dash stating 'Engine oil level is low'. It shows up for a while and then it disappears.
It will continue to do this for a while but the longer I drive, the message will eventually disappear until I turn off my car and begin driving again. I don't think there is a leak in my oil line because i don't see any oil on my parking garage floor and I'm not due for an oil change for another 1000 miles.
I'm not sure why its doing this because when I'm due for an oil change, it usually gives me a message 'Oil maintenance is required soon' when I start my car.
Please HELP!!
 

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Discussion Starter #3
Yes; It is very low. It is lower than it would be at this time. Could it be that I'm using 5W-30 full synthetic oil? Am I burning oil? Should I be using 5W-20 instead?
 

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Yes; It is very low. It is lower than it would be at this time. Could it be that I'm using 5W-30 full synthetic oil? Am I burning oil? Should I be using 5W-20 instead?
There is actually a TSB that recommends using 5W-20 in IS350's, mentioned in this link(not sure if it applies to all years).
Is350 Oil Confusion No More - Club Lexus Forums

Oil loss is either due to a leak or oil consumption. Oil consumption depends primarily on two things: the valve guides and piston rings. So you notice oil in the coolant reservoir or radiator? Exhaust blowing smoke consistently?
 

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Discussion Starter #6
I checked the coolant reservoir and if my exhaust was blowing smoke and my car has none of those symptoms. Do you think it could by the PCV system? Valve or gasket seals damaged? Compression of the engine?
 

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have you actually looked under the car to find a leak.. there are many panels underneath that will soak up the oil preventing anything ever from getting on the ground.
 

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Discussion Starter #9
I haven't thoroughly checked under the car because I figured I would see the oil on the ground if there are any leaks but since you mentioned that there are a number of panels underneath that could soak up the oil, I'm going to check it out.
and FYI ... i get the 'low oil level' warning before the recommended oil change mileage. The warning has been coming on around 2000 - 2500 miles after the oil change. My oil should last well over 3000 miles, I would usually get it changed after 3000 miles and the car would indicate that I need 'oil maintenance'.
 

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Oil maintenance is required soon' when I start my car.
Please HELP!!

That light is based on time/mileage since it was last reset. It should be reset after changing oil if you are doing that more often than the maint manual says.
 

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You know how they call those 'idiot lights?' Add oil! I would think a potential $8k+ expense would be worth buying a quart of motor oil and a funnel for 7 bucks.
 

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Discussion Starter #12
Thanks for all replies.

UPDATE: I got my car thoroughly checked for any oil leaks (removed all panels underneath vehicle and thoroughly inspected) and found no signs of any oil. I recently got an oil change in the first week of October and now I'm receiving the same warning 'Oil level is low" but it doesn't stay on, it disappears after a minute or so. I checked my dip stick and noticed that my oil level is low (below the first indicator) and I have yet to reach the 3000 - 5000 mile recommended oil change. I don' t notice any significant changes in exhaust smoke or a burning smell coming from my engine. I'm still clueless in regards to what could be causing my vehicle to burn oil so quickly. Please advise.
 

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All engines burn some amount of oil. In the owners manual it specifically addressed what abnormal burning is. The thing is because you are paying someone to do it, you dont know exactly how much oil was put in the car (or what the dipstick reads), so you dont really know weather there is abnormal burning occurring or if it was simply never filled that full in the first place.

Add a quart of oil, or so, so the level comes up. Next time you get it changed, drive home, park on level ground, let your car sit for a little (off) and check the dip stick to see exactly what level is right after they filled it. If it was barely past the low notch, I'd be having some words with them.
 

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The same thing happened to me last week.
2006 IS350 with 57K (no leaks) and running 0w20.
It took 2 quarts to fill it up. I might switch back to 5w20 soon and then 5w30 for summer.
 

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Lexus IS350 Does Burn Oil

I purchased my IS350 used and discovered my oil consumption problem about 1 month later. Only 89K miles. No leaks, no performance issues, no smoke out the back end. It went to 2 separate Lexus dealers and a Toyota-Lexus specialist shop. There is potentially a problem with the larger V6 found in Lexus IS350s.

I have no idea what the previous owner did to the car, what oil he used or any details but now I have an engine that has been confirmed by a dealer that it CONSUMES 1.2 quarts every 1000 miles and they admitted that is a problem. There is nothing normal about that level of oil consumption.

Best thing to do is contact Lexus Corporate (1-800 number) and communicate your Oil Consumption problem. I went that route and they refused to replace my "out of warranty" engine based on the fact there were not enough complaints/cases with that specific problem. CALL and generate a case.
 

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2006 IS350. I've owned it since 30k. Now 130k miles. All oil changes done every 5k at Lexus dealer.

Low oil light came on maybe 6 months ago. Car was burning 1 quart of oil every 2-3k miles. Now it is burning 1 quart of oil every 1k miles. Lexus will tell you the acceptable amount is 1 quart every 600 miles.

I'm not sure which brand of oil the Lexus dealer uses. I will have to find out. But I'm thinking of switching to a different brand of oil and changing it myself. Not sure it will help but only one way to find out.

Some cars burn oil when they are new! Check out this video: https://www.youtube.com/watch?v=aExFfzabBtA
 

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2006 IS350. I've owned it since 30k. Now 130k miles. All oil changes done every 5k at Lexus dealer.
My situation is just like yours, every detail. Still trying to figure out how to fix the oil problem. I added 5 qts since April.

I am thinking to try switching to a non-synthetic oil.
 

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My situation is just like yours, every detail. Still trying to figure out how to fix the oil problem. I added 5 qts since April.

I am thinking to try switching to a non-synthetic oil.
I actually just changed the oil myself this weekend at 133k miles, trying Mobil 1 5W-30 high mileage. Will see if that makes an difference.
 
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