Engine Oil Overfill

[Eddie_Tahoe]

Hey all. I drove home from a regular oil change and didn't notice anything unusual but next day saw oil level was a little high (at about the R in "OPERATING RANGE" on dipstick, see picture). Service invoice says 6qt went in. Took a short drive, pressure seemed higher than normal (about 50psi), slowly dropped to around 25psi steady as truck warmed up. Should I be worried, try to drain some out? THANK YOU!

 

[Eddie_Tahoe]

Sorry truck is the 5.7L V8, 1999.

 

[Jimmyy]

I would smell the dip stick just to make sure you don't have fuel in the oil. If it checks out then remove some oil.

 

[OR VietVet]

Your owner's manual should say 5 quarts. That engine is a 5 quart engine. Take it back, asap, and have them correct the level. They added 6 quarts, as the invoice says and it does look to be 1 quart over full on the dipstick.

 

[OR VietVet]

That invoice also tells you they pumped in oil and never checked the level. Idiots!!!
You need to get some tools and a drain pan and do it yourself.

 

[homesick]

Too much oil can be whipped and aerated by the crank, possibly causing damage like the oil level is too low.

I recommend taking OR VietVet's posts to heart.

joe

 

[Fless]

Did you read the other side of the dipstick? It might show a lower level; always use the lower level reading. And be sure to read it with the vehicle on a level surface, with the engine not having run for 10 or 15 min to allow the oil to drain from the upper engine.

 

[OR VietVet]

When pic of dipstick was shot, was the dipstick being held vertical or horizontal?

 

[homesick]

That invoice also tells you they pumped in oil and never checked the level. Idiots!!!
You need to get some tools and a drain pan and do it yourself.

... and check it each time, before you leave their facility.

I have no disagreement with Fless' post but, in my experience, his recommendations are for reading and adjusting in finer increments than what you're dealing with here; especially if they've over-filled you.

If GM's gone from 5 qt capacity to 6 qt capacity, over filling an older engine just gets more likely.

joe

 

[Fless]

... and check it each time, before you leave their facility.

I have no disagreement with Fless' post but, in my experience, his recommendations are for reading and adjusting in finer increments than what you're dealing with here; especially if they've over-filled you.

If GM's gone from 5 qt capacity to 6 qt capacity, over filling an older engine just gets more likely.

joe

Unlevel ground can make a difference, too.