Major oil loss problem, no oil light

Add oil to it and see what happens. The dealer will have to do an oil consumption test, to see if it'll burn a quart in 600 miles before they'll cover a replacement.

SM-N900P ?

 

probably your intake manifold making that noise

 

The only light that'll come on is a low oil pressure warning light, likely way too late.

 

I can verify personally that at 3 liters low...no low pressure light. My dealership quick lane wrench left the filter bowl "loose" and day after I came home from a 400 mile round trip notice oil under vehicle when moving out of driveway and...nothing on the dip stick. Called Dealership and talked to Service Dept. Big Boss and after brief discussion I poured the 3+ liters in. Told him I was not going to drive it, so they had it towed. 2 hours later he called back to have me pick it up. Our discussion ended with them taking responsibility. Had 86,000 miles on the vehicle at that time so power-train warranty was expired. They extended the power-train warranty an additional 100,000 miles with free oil/filter changes during that period (at any cycle I choose)...and replaced the belly pan because the sound damper was oil soaked. If the motor goes out of spec on burn rate or goes kaput...new motor on them. Good luck.

 

Sorry to not provide a supportive reply, but:

Routine oil checks are a requirement on every vehicle I have ever owned.

Based on the wording in every owner's manual of every car I have ever owned, Prius included, regular oil level checks are a maintenance requirement. I would be astounded if this will be covered under any warranty.

6500 miles is far far too long to go without checking. Most individual vehicles will be fine at that distance, but a significant fraction need attention sooner. It is entirely up to the owner/operator notice and address such issues. Most manufacturers disclaim any warranty responsibility for oil consumption less than 1 quart per 500 to 1000 miles.

 

If the oil light didn't come on, then there was still oil pressure in the system. I don't think there was permanent damage but whatever caused the oil to burn that low in 6500 miles.....is still there.

I hate having warranties for this reason. They will charge you for all these tests they want to perform....and at the end, it'll be considered "normal" since it won't burn 1 qt in 600 miles. So it'll just cost you money to have these tests done......and if you don't do them, you'll think you're missing out.

 

That doesn't even mean that's the level. The Prius dipstick is very hard to read. I think due to kinks in the tube it runs through? Whenever I check ours there's oil running along the edges. Flipping it over it's just possible to discern the true level.

I would follow JC91006's advice: get maybe 4 quarts of 0W20, bring the oil up the top mark, cross your fingers. How many miles on the odometer?

 

how many miles on her?

 

I check my oil -- I would never put 6500 miles on a car without checking. That's me.

All you can do is fill the oil and see what is up -- run it for a while.

 

Did it sound like this?

 

That particular phenomenon happens when you start a cold engine (ICE) for just a few seconds (like moving it around the driveway) and then let it sit for several hours in cool conditions (usually overnight). The misfire (sounds like the engine is about to grenade) happens on the next start.

Did you have similar circumstances? If so, the low oil level may not be related.

 

This start up issue probably saved your engine, otherwise you would not check the oil

SM-N900P ?

 

The funny thing is this happen to me on my 2010 when it only had about 15k miles and it was almost the exact same time of the year. We were leaving for spring break and this misfire happened as I was pulling the car out of the garage to load the luggage! I had washed it the night before and when moving it back into the garage the ICE came on for just a couple of seconds. Luckily I had seen it reported here so even though I understood what had just happened I was still very concerned about making such a long trip but it ran fine.

Your oil consumption needs to be monitored. Most manufacturers have benchmarks for warranty repair: one qt per 1,000 miles is a typical rule of thumb. This is so high that the time between oil changes is enough to run out of oil like you did and still not meet their standards.

 

Toyota's is even worse, one quart per 600 miles, per JC91006's post #2.

Toyota, and the rest of them, should be required to show that in the sales brochures.

 

that's a bit early, but not unheard of. the 2010's seem to be the worst offenders for some reason.

 

You think maybe because more owners followed the 5,000 mile oil/filter change schedule recommended for GEN II's? Just saying.