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#1434622 - 04/14/09 02:50 PM overfill; percentile oil expands when hot; HELP~!
idriveadelsol Offline


Registered: 04/14/09
Posts: 18
Loc: california
Hi… New here… anyway,

Vehicle: Honda S2000 2.2L (2007)
Oil: Mobil 1 Extended Performance (10W-30)

All,

What is considered an overfill… In regards to engine oil?

-> using more than the recommend amount in the user manual by Honda?

OR

-> the oil lever reading ABOVE the H (high) on the oil dipstick.

5.1 quarts is recommended… but 5.5 quarts never reaches the H level on my dip stick. I have been using 6 quarts at every 5k miles for 30k already. NOTE: I check my oil COLD in the morning.

Currently, I am approx 1 millimeter above the “H” (high) COLD… obviously; I am overfilled… how much am I over filled?

If 5.1 quarts was recommended, and I have 6 quarts in there… am I overfilled by 0.9 quarts?

OR

am I overfilled by “X” amount being over the “H” mark.

Also… at what percentile does oil expand when heated? I drained .5 quarts (middle of dipstick COLD) and when I run the car and check 30 minutes later, I am at the “H” (high) level on the dipstick. Strange…

Thanks in advance all…

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#1434719 - 04/14/09 04:53 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: idriveadelsol]
gfh77665 Offline


Registered: 09/01/08
Posts: 2095
Loc: Southeast Texas
Let me tell you a little story (the highly condensed version).

I took 95' Chevy PU to Walmart, got oil change. Next morning, half quart or so is on driveway. Its 4AM, and I have to get to work, so I drive 30 miles, assuming its just a leak.

Call WM, they tell me to not drive truck, they will come out to me. They arrive at lunch, to "rechange" my oil in parking lot. WM guy slides under truck, and drains out 12 QUARTS! They had double filled!

Refilled with correct amount, then I drove truck with no problems for another 4 years & 100,000 miles.

Bottom line, don't overfill in general, but don't sweat it! My truck was living proof its not a disaster, especially if its a quart or less. Oil does not expand. Hope this helps!

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#1434787 - 04/14/09 05:49 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: idriveadelsol]
Hounds Offline


Registered: 03/19/09
Posts: 408
Loc: Hither & Yon
Idriveadelsol: If you look in the Specifications section of your S2k owner's manual, you will see it lists three oil capacities: two "change" capacities -- one including a filter change and one without -- and a "total" capacity. The latter, you will see, is roughly a quart more than the "without filter" capacity. In other words, if your car is level when you change your oil, there's still a little less than a quart of oil left in the oil system. That's true for most cars. It also explains why you can get more than 5.1 quarts out of the sump by jacking your car from one side or another, or higher in the front, when you are changing oil. Consequently, you aren't really overfilling the car's oil system until the oil level you're seeing on the dipstick when the car is level is above the high mark on the dipstick. And, the small additional amount you described, a millimeter over the high mark, isn't significant. It probably represents about 100cc, if that.

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#1434871 - 04/14/09 07:33 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: Hounds]
mstrjon32 Offline


Registered: 05/27/03
Posts: 1565
Loc: Elkridge, MD
My 1997 Monte Carlo called for 4.5 quarts. I was never bothered to measure out a half quart (and I know a guy that measures out 3.9 quarts, exactly), so I just dumped 5 quarts in. Sold it with 194K miles, running fine.

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#1434874 - 04/14/09 07:38 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: mstrjon32]
BuickGN Offline


Registered: 10/18/07
Posts: 3756
Loc: CA
Don't worry at all if it's just a little above the full mark. I've run my TL quite a bit past the full mark for 70,000 miles.
_________________________
84 Buick GN. 10.60@127 old times. 602hp 620lbs.
06 Acura TL. Lots of suspension and brake mods.

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#1434997 - 04/14/09 09:52 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: mstrjon32]
Max_Wander Offline


Registered: 08/27/06
Posts: 1365
Loc: orwellian sheep land?
 Originally Posted By: mstrjon32
...and I know a guy that measures out 3.9 quarts, exactly...



People like that should just stick to accounting or auditing.


idriveadelsol ,
dipstick > the manual
[real life > theory]

sleep easy.

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#1435103 - 04/15/09 12:14 AM Re: overfill; percentile oil expands when hot; HELP~! [Re: Max_Wander]
idriveadelsol Offline


Registered: 04/14/09
Posts: 18
Loc: california
Interesting …. I go out for a spirited spin and I do jack up the rear of my vehicle during an oil change so I can get more used oil out of there. I let it drain for about .5 to 1 hour. Probably the reason why I can reach the “H” (high) level on the dipstick COLD with 6 quarts. I do not leave the canisters to drain/empty out for every drop of oil. I know I have enough.

1 more thing… do I check my oil COLD or HOT? gfh77665 , if oil does not expand when heated, why is there an ongoing debate on checking engine oil cold vs. hot? Not my field, so I am curious.

Thanks again all… people in that vehicle forum tell me my car is going to throw a rod or blow up. I swear…

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#1435106 - 04/15/09 12:23 AM Re: overfill; percentile oil expands when hot; HELP~! [Re: idriveadelsol]
virginoil Offline


Registered: 09/05/05
Posts: 897
Loc: western australia
Run your engine and get it hot. After vehicle is stopped for 5 mins or so note level on dipstick.

Next morning check dipstick when cold and note difference between the hot and cold level.

This will give some baseline idea.

For my vehicle, the expansion on the dipstick between hot and cold is about 1/8th of an inch.


Edited by virginoil (04/15/09 12:24 AM)

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#1435319 - 04/15/09 09:48 AM Re: overfill; percentile oil expands when hot; HELP~! [Re: virginoil]
ctc Offline


Registered: 11/05/08
Posts: 488
Loc: VA
 Originally Posted By: virginoil
Run your engine and get it hot. After vehicle is stopped for 5 mins or so note level on dipstick.

Next morning check dipstick when cold and note difference between the hot and cold level.

This will give some baseline idea.

For my vehicle, the expansion on the dipstick between hot and cold is about 1/8th of an inch.


I can't check the oil on my 2 cars when they're hot (one 08 Nissan and one 08 Mazda). There is oil all over the dipstick after wiping and replacing. I never had this problem on Ford, Dodge, Honda and Toyota in the past but I did have the same issue with my 99 Nissan as well.

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#1435640 - 04/15/09 03:34 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: ctc]
HTSS_TR Offline


Registered: 04/17/06
Posts: 12191
Loc: Irvine, CA
I have 2004 S2000, I always use 5 quarts and the level is 1/8" down from the max line.

I check oil level when engine is cold usually in the weekend morning. Once in a while I checked oil level at gas station after driving more than 10 miles and the level was the same.
_________________________
'94 LS400
'00 E430
'04 S2000
"Consumerism has accustomed us to waste. But throwing food away is like stealing it from the poor and hungry" Pop Francis

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#1435668 - 04/15/09 03:58 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: virginoil]
ARB1977 Offline


Registered: 06/12/05
Posts: 4401
Loc: North Texas
 Originally Posted By: virginoil
Run your engine and get it hot. After vehicle is stopped for 5 mins or so note level on dipstick.

Next morning check dipstick when cold and note difference between the hot and cold level.

This will give some baseline idea.

For my vehicle, the expansion on the dipstick between hot and cold is about 1/8th of an inch.

Same here in my Tacoma. I fill cold to the full mark.
_________________________
2002 Tacoma 3.4L 159K (as of 04-05-14)
M1 HM 5W30 / Fram Synthetic

2008 CRV 2.4L 105K (as of 03-22-14)
PP 0W20 / Honda A02

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#1435739 - 04/15/09 04:58 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: idriveadelsol]
gfh77665 Offline


Registered: 09/01/08
Posts: 2095
Loc: Southeast Texas
 Originally Posted By: idriveadelsol


1 more thing… do I check my oil COLD or HOT? gfh77665 , if oil does not expand when heated, why is there an ongoing debate on checking engine oil cold vs. hot? Not my field, so I am curious.


Here is the deal: It's not the temp that is changing the level you see, it's that just after shutting off an engine, a lot of the oil is up in the nooks and crannies at the top of the engine. It circulates from bottom (the sump) to the top of motors.

So, after sitting for a half hour or so, it drains back down into the pan, and you can get an accurate read. Of course, after sitting all night, checking a cold engine gives a very accurate read. Checking a hot engine might you might see a "level" of oil that was sloshed up on the dipstick, and get a falsely high read. Oil does not expand. Hope that helps, GH.

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#1437532 - 04/17/09 01:51 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: HTSS_TR]
blackdiamond Offline


Registered: 03/05/07
Posts: 618
Loc: Western Washington
I run 5 quarts in my 22RE (Truck and 4Runner) engines without problem. The spec is somewhere around 4.5 quarts. I try to run an oversized filter to offset the additional capacity, but it doesn't always happen. If the jub was 4.5 quarts I would use that.
_________________________
1989 Toyota 4Runner / 5w-30 Pennzoil Platinum
2004 Toyota Sequoia / 5w-30 Mobile 1 EP
2008 Honda Civic / Unknown

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#1437651 - 04/17/09 03:54 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: blackdiamond]
01rangerxl Online   content


Registered: 04/08/06
Posts: 6945
Loc: Birmingham, AL
My truck is supposed to take 4.5 quarts, but if I dump in a whole 5 quart jug of oil it will usually be right at the full mark on the dipstick. I don't worry about it, I just use the full five quarts.

Assuming the dipstick is the original one, I'd just go by what it reads.
_________________________
2002 Ford Ranger XLT
3.0 V6 / 5-Speed Automatic / 2WD
151K miles

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#1437913 - 04/17/09 08:50 PM Re: overfill; percentile oil expands when hot; HELP~! [Re: 01rangerxl]
mgm13 Offline


Registered: 11/24/03
Posts: 262
Loc: Rio Grande Valley
Power steering dipstick on anything I've seen has a hot level mark and a cold level mark auto transmissions do also and both use oil why would engine oil be different?
_________________________
mgm13,NRA Life Member
2003 PT GT Dream Cruiser
2006 Toyota Avalon

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