Basic Oil Check Question (Gen7)

[YRMed]

Originally Posted by hillstones

He never said he checked his oil with the engine running. I agree, it is not overfilled.

Well now, lets pick a fight, why dont we. I said "has been running" not " is running". Has been running implies was turned on and then turned off. Otherwise it would be a running engine.

But thank you, your input was invaluable. Your contribution to humanity is priceless.

[BLCKFLSH]

Regardless if the engine has been off for 10 minutes, or 10 hours, I pretty much get the same reading on the dipstick. I put in 4.5 quarts with the oil and filter change (03 V6). I do not overfill. My engine does not burn/consume oil like some do.

[RTexasF]

Originally Posted by The Critic

I would never exceed the max mark on the dipstick. It can cause damage to the emission control system.

On the Prius forum, people who overfill the engine oil have discovered that it negatively impacts fuel economy.

That strictly depends on how over full the oil is. A quart? WAY too full. 1/8 or 1/4" over full on the stick comes under BFD.

[Accordriver]

Originally Posted by The Critic

I would never exceed the max mark on the dipstick. It can cause damage to the emission control system.

How so?

[The Pope]

Originally Posted by Accordriver

How so?

Referance RtexasF answer. If you have too much oil, the crankshaft will be hitting it as it spins. This will cause the oil to foam. When oil foams, it starts to lose it's lubercation ability and will be allowed to pass by the piston rings easier along with it being able to be ****ed into the intake side of the engine thru the PCV (Positive Crankcase Valve) and then burned. This is not a good thing for a lot of the different sensors and systems that the car has. That's where it can start to cause problems with the Emissions Control System (among other issues).

So IMHO it's better to run your oil level a tad (1/2 qt at most) low that too high.

[07graphiteV6cpe]

If the oil is below the minimum level will that hurt the engine.

[The Pope]

Originally Posted by 07graphiteV6cpe

If the oil is below the minimum level will that hurt the engine.

It depends on how much below it is, but in general, yes, it will hurt the engine, but it's (IMHO) not as bad as running an engine with too much.

IMHO a half quart low isn't as bad as having a half quart too much.

But you need to strive to have it in as close to the correct level as much as possible.

[Accordriver]

Originally Posted by The Pope

Referance RtexasF answer. If you have too much oil, the crankshaft will be hitting it as it spins. This will cause the oil to foam. When oil foams, it starts to lose it's lubercation ability and will be allowed to pass by the piston rings easier along with it being able to be ****ed into the intake side of the engine thru the PCV (Positive Crankcase Valve) and then burned. This is not a good thing for a lot of the different sensors and systems that the car has. That's where it can start to cause problems with the Emissions Control System (among other issues).

So IMHO it's better to run your oil level a tad (1/2 qt at most) low that too high.

While I agree that too much oil can cause lack of lubrication, even damaged internals in extreme cases, and allow oil to travel through the PCV system as it's the quickest way out, I don't see how *foaming* can cause oil the the PCV system nor how the oil will physically damage sensors..

[littlewing1208]

Originally Posted by Accordriver

While I agree that too much oil can cause lack of lubrication, even damaged internals in extreme cases, and allow oil to travel through the PCV system as it's the quickest way out, I don't see how *foaming* can cause oil the the PCV system nor how the oil will physically damage sensors..

IACVs are very finicky to oil residue in them and MAPs are also not as accurate with a film of nastiness on the input side.

[psyshack]

Originally Posted by rsh37930

Correct. Thanks. I waited an hour, then waited overnight -- both readings are the same - oil up to the "A" in the "RCA" on the stick. I presume that is in range.

No it's over filled a tad. |xxxxxxx| That is your min and max.

[rsh37930]

Originally Posted by psyshack

No it's over filled a tad. |xxxxxxx| That is your min and max.

I am thinking it's probably .5 qt over.

[Cleankill]

I assume your the dip-stick reading as just as accurate/errorous, then it would be 4.4L (mine is just above the "A")

[rsh37930]

Originally Posted by Cleankill

I assume your the dip-stick reading as just as accurate/errorous, then it would be 4.4L (mine is just above the "A")

ok ... you're the second person to say this, so it looks like I need to call Honda, to get an explanation ... I need to know the measurement is correct, before I know if there is an overfill

[Cleankill]

i consider the V6 dipstick to be rather accurate (at least on mine). I drained it down to virtually no oil left, i even took a dryer to blast some air into the engine. Personally, I would not be concern with any slightly overfill; 1/4 of a quart is nothing! As long as you can see the oil at least min or not way overfilled, you are fine. Interestingly, I have actually seen some bottle has marginally more oil than other even they are the same brand and oil weight...

I have another vehicle call for 4L and i poured a 4L in. The dip stick is at "Min" mark...