V6 vs. V8 in terms of oil

[BMFR6]

Honest question.
Why does my wife's V6 Trailblazer take 7 quarts of oil and my V8 Silverado take 6 quarts of oil? Actually, the V8 trailblazer takes 6 quarts as well. So, I guess what I am asking is why would a larger engine take less oil than a smaller engine.

[FirstDuc-1098]

less space under the hood

[cdseven95]

I have one four cylinder that takes 4 quarts and my other takes 5.5 quarts.. I think it has little to do with engine size and more to do with amount of oil passages, passage sizes, oil coolers, oil filter size, etc...

[jcbell1007]

thats weird. 7 qts is unusual for a gasoline engine. Diesels take lots of oil usually. My 4.6l V8 takes 6, my 4.7l v8 in my dakota took 6, and the 4.0l v6 in my ranger took 6.

it also could be due to the RPM's of the engine. Higher RPMs can mean the oil can get "spun up" and leave the crank dry.

[Sheppo]

Trailblazer and V6? I thought those were all inline 6's

[R7]

Trailblazer and V6? I thought those were all inline 6's

Correct, standard they are inline 6's.

They have to design the oil pan around the vehicle in many cases and create a "sump" that can hold volume. Usually smaller and more compact vehicles have less room in that area to work with and with an odd shaped oil pan, oil could be delayed to returning to the sump in time. So they make the pan bigger in some area's to store more volume
When I had my GMC with the 8.1L gas, it took 7 quarts.

[Rambunctous]

Just got off the phone with Rosie O'Donell and she stated it is a conspiracy by Bush and Big Oil to destroy America.

[BMFR6]

Correct, standard they are inline 6's.

They have to design the oil pan around the vehicle in many cases and create a "sump" that can hold volume. Usually smaller and more compact vehicles have less room in that area to work with and with an odd shaped oil pan, oil could be delayed to returning to the sump in time. So they make the pan bigger in some area's to store more volume
When I had my GMC with the 8.1L gas, it took 7 quarts.

Yes you're right it is an I6. Thanks for the explanation, that makes sense.

The oil filter, while it's not difficult to access/change, it's in one of the worst spots for a filter. It hangs directly above a frame cross member; messy oil changes.

[caddydaddy]

thats weird. 7 qts is unusual for a gasoline engine. Diesels take lots of oil usually.

My 4.6 liter Cadillac Northstar takes 7.5 quarts, but my 6.0 liter Escalade takes 6 quarts. There's definitely room under the hood of an Escalade for a larger pan, so I'm not sure why smaller engines hold more oil!

[Daytona440]

some of the oil cooled Porsches take between 12-14 quarts...

[ZX-12R]

Diesels take lots of oil usually.

Because of their high compression, diesels have more blow-by than gasoline engines which causes the oil to deteriorate faster. Having extra oil volume allows you to run longer without having to change the oil

some of the oil cooled Porsches take between 12-14 quarts...

My father restored an older air cooled 911 and 912 and both took around 13 quarts if you completely drained the front mounted oil coolers and their lines that ran the length of the car.

[daviid]

some of the oil cooled Porsches take between 12-14 quarts...

more area to disipitate the heat across. more place for the heat to go, results in less over all temp. less overall temp results in longer oil life

[CBR929RE]

Yes you're right it is an I6. Thanks for the explanation, that makes sense.

The oil filter, while it's not difficult to access/change, it's in one of the worst spots for a filter. It hangs directly above a frame cross member; messy oil changes.

try getting to the oil filter in a 2002 Chevy Cavalier 2.2L. Above the A arm behind the inner fender. and you can't get at it from the top because there's no open space anywhere under the hood. So you have to go in from the bottom but you have to bend your arm in an S shape and there's barely room to hold a filter wrench in an awkward position. I did that oil change for my sister once and told her never again.




my 2.7L 4cylinder takes 6qts. always thought it was kinda weird but oh well I didn't design it.

[e30addict]

The Germans have been doing large sump capacities for years. Lots of hard running at high speed for long periods of time. Use a small sump capacity and you'll have sludge in no time.

Lightly loaded truckscan get away with a smaller volume and help improve warm up time.

My thoughts anyway

[The Crashing Tomato]

"Because moms in suvs spend more time beating the crap out of you stinggy men for money to pay for oil changes so engineers figured why not make it worth thier effort" by Rosie O'Donnell

I-6 vs. V-6 vs. V-8 vs. german I-4's vs. cadi's vs. diesel vs. hydro vs. electric vs. hybrid vs. aluminum vs. cast iron vs. delorean vs. S7 vs. all the reasons ^^^^ and your average comes to the same answer

"I think my Momz gone C-R-A-Z-E-E"

[zxme]

try getting to the oil filter in a 2002 Chevy Cavalier 2.2L. Above the A arm behind the inner fender. and you can't get at it from the top because there's no open space anywhere under the hood. So you have to go in from the bottom but you have to bend your arm in an S shape and there's barely room to hold a filter wrench in an awkward position. I did that oil change for my sister once and told her never again.




my 2.7L 4cylinder takes 6qts. always thought it was kinda weird but oh well I didn't design it.

My wife sold her cavalier that she had for 10 yrs, and i did every oil change on it. After a few times it was a cake walk. well maybe a dozen times

[Bandit12k]

my 99 blazer only takes 1 quart..... Every 2 weeks!!!!!

baaaaaa hahahahahaha!