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Sump size trends? #4836142
08/10/18 08:03 AM
08/10/18 08:03 AM
Joined: Jun 2003
Posts: 724
McGregor TX
mrdctaylor Offline OP
mrdctaylor  Offline OP

Joined: Jun 2003
Posts: 724
McGregor TX
Like many of you on here, I normally buy my motor oil in 5 quart jugs. However, with the recent sale of my Hyundai Santa Fe, now all 4 of the cars I maintain (see below) have sumps larger than the 5 quarts you get in a jug. My cars take 5.7, 6.0, 6.4 and 7 quarts respectively. I think that's great, honestly. It should help the oil last longer. However, it is also a bit irritating that a single 5 quart jug won't do an oil change on any of my vehicles, which sometimes means mixing in a little different oil to bring it up to the right level (or buying a single quart of the same oil at an inflated price).

I guess my questions for this group are:
1) Are bigger sumps a trend? Or is this just me? I only have a sample size of 4. :-)
2) Do you think it might be time for manufacturers to go to a 6 quart jug? Or would that be too heavy/unwieldy?

I'd be happy buying in quarts again if the price was the same, but I don't see that happening very often.


02 Tacoma 3.4L, 229K, Hav ProDS 10W30
12 Highlander 3.5L, 104K, Napa Syn 0W20
17 Escape 2.0L, 43K, PP 5W30
02 Trailblazer 4.2L, 186K, Edge HM 10W40
Re: Sump size trends? [Re: mrdctaylor] #4836148
08/10/18 08:11 AM
08/10/18 08:11 AM
Joined: Aug 2017
Posts: 749
WY
sloinker Offline
sloinker  Offline

Joined: Aug 2017
Posts: 749
WY
I think that most manufacturers are trying to get longer OCI's which means a larger sump.

Re: Sump size trends? [Re: mrdctaylor] #4836152
08/10/18 08:15 AM
08/10/18 08:15 AM
Joined: Jan 2008
Posts: 3,484
Central Iowa
TiredTrucker Offline
TiredTrucker  Offline

Joined: Jan 2008
Posts: 3,484
Central Iowa
GM has taken there newer V8's to 8 quarts. At least in the pickup trucks. Can't speak to their cars. None of my GM vehicles have 5 qt sumps. The wife's 2006 Cadillac CTS 3.6 is a 6 quart sump as is my 2015 2500 6.0. I will sometimes get oil in the 5 qt jugs when on sale. I just add what I need from the second one. Not that big of a deal.


Freedom is not about having the choice to do what you want, but the choice to do what you ought.
Re: Sump size trends? [Re: TiredTrucker] #4836158
08/10/18 08:21 AM
08/10/18 08:21 AM
Joined: Sep 2010
Posts: 9,529
Texas
4WD Online confused
4WD  Online Confused

Joined: Sep 2010
Posts: 9,529
Texas
Our 2017 Tahoe is 8 quarts whereas our 2010 GMC is 6 quarts both 5.3L, albeit different Gen 5.3L

Re: Sump size trends? [Re: mrdctaylor] #4836159
08/10/18 08:21 AM
08/10/18 08:21 AM
Joined: Jun 2003
Posts: 724
McGregor TX
mrdctaylor Offline OP
mrdctaylor  Offline OP

Joined: Jun 2003
Posts: 724
McGregor TX
Nah, not a big deal in the grand scheme of things. But if you're like me and tend to buy with rebates, you end up with a bunch of 5 quart jugs of different brands, which means mixing brands to get to 6+ quarts. Again, not a huge deal...but I generally prefer to not mix if possible.


02 Tacoma 3.4L, 229K, Hav ProDS 10W30
12 Highlander 3.5L, 104K, Napa Syn 0W20
17 Escape 2.0L, 43K, PP 5W30
02 Trailblazer 4.2L, 186K, Edge HM 10W40
Re: Sump size trends? [Re: mrdctaylor] #4836166
08/10/18 08:25 AM
08/10/18 08:25 AM
Joined: Sep 2010
Posts: 9,529
Texas
4WD Online confused
4WD  Online Confused

Joined: Sep 2010
Posts: 9,529
Texas
I posted a while back that gallons would not upset me (like HDEO)
Have an 8, 6, and two barely over a gallon

3 out of 4 only drain a gallon of ATF too so migrating to Maxlife jugs as old stash is thinner

Re: Sump size trends? [Re: mrdctaylor] #4836182
08/10/18 08:38 AM
08/10/18 08:38 AM
Joined: May 2015
Posts: 745
California
SavagePatch Online content
SavagePatch  Online Content

Joined: May 2015
Posts: 745
California
RAM 1500 Ecodiesel 3.0L is 10.5qts

I use three 1 gallon jugs. My truck doesn't use oil so I use the remaining 1.5qt for OPE and topping off ours and friends and family's cars.

I see 5qt jugs of HDEO available elsewhere but even if they were available to me I don't think the math would work out much better.

My favorite feature is a jug with a clear sight gauge.

Re: Sump size trends? [Re: 4WD] #4836184
08/10/18 08:39 AM
08/10/18 08:39 AM
Joined: Aug 2003
Posts: 13,811
NE,Ohio
Rand Offline
Rand  Offline

Joined: Aug 2003
Posts: 13,811
NE,Ohio
Originally Posted By: 4WD
Our 2017 Tahoe is 8 quarts whereas our 2010 GMC is 6 quarts both 5.3L, albeit different Gen 5.3L


Do they also spec different oil weights?

I feel that some of the increase in sump size corresponds to spec'ing thinner oil.


2019 Jeep Cherokee Trailhawk 2.0T
Re: Sump size trends? [Re: mrdctaylor] #4836190
08/10/18 08:45 AM
08/10/18 08:45 AM
Joined: Mar 2012
Posts: 553
Toronto, Canada
HKPolice Offline
HKPolice  Offline

Joined: Mar 2012
Posts: 553
Toronto, Canada
This is definitely the trend. Take Toyota's V6s for example: 1MZ/3MZ 3.0/3.3L both are 5qt sumps. Newer 2GR-FE V6 3.5L = 6.4qts

Corolla:
1ZZ-FE 1.8L = 3.9 qts
2ZR-FE 1.8L = 4.4 qts

Camry:
2AZ-FE 2.4L = 4.0 qts
2AR-FE 2.4L = 4.65 qts

I think a lot of this has been influenced by North American owners' habits as they're more likely to neglect oil changes.

I don't think oil manufs will ever go beyond 5qt jugs, valvoline already sells a 24qt "Bay Box" container but it's not targeted at end users.

Re: Sump size trends? [Re: mrdctaylor] #4836193
08/10/18 08:48 AM
08/10/18 08:48 AM
Joined: Aug 2018
Posts: 414
NH
wdn Offline
wdn  Offline

Joined: Aug 2018
Posts: 414
NH
It just increases the price of an oil change. I can see for the V8s. My 2004 Tundra now that I use the oversized 1-quart Wix 51515 filter, takes 7 quarts. Stock it takes 6.5 quarts.

Fewer people are buying cars and more are buying trucks and SUVs. But that still does not account for year to year increases in motor oil capacity for the same model. Then you also have to ask yourself why are they still using the same midget oil filters.

Re: Sump size trends? [Re: wdn] #4836196
08/10/18 08:52 AM
08/10/18 08:52 AM
Joined: Oct 2002
Posts: 37,611
Great Lakes
Quattro Pete Offline
Quattro Pete  Offline

Joined: Oct 2002
Posts: 37,611
Great Lakes
Originally Posted By: wdn
It just increases the price of an oil change.
Sure, but with less frequent oil changes now made possible, the overall maintenance cost should stay the same or decrease.

Quote:
Then you also have to ask yourself why are they still using the same midget oil filters.
I'm not seeing any evidence that engines are becoming more and more dirty, so why would larger filters be needed?


'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (PUP 0W-40 SRT)
Re: Sump size trends? [Re: mrdctaylor] #4836204
08/10/18 08:59 AM
08/10/18 08:59 AM
Joined: Oct 2002
Posts: 37,611
Great Lakes
Quattro Pete Offline
Quattro Pete  Offline

Joined: Oct 2002
Posts: 37,611
Great Lakes
Originally Posted By: mrdctaylor
However, it is also a bit irritating that a single 5 quart jug won't do an oil change on any of my vehicles, which sometimes means mixing in a little different oil to bring it up to the right level (or buying a single quart of the same oil at an inflated price).
I haven't had a car that required 5 qt or less in ages, so that's kind of normal for me. I just buy an extra 5qt jug if I need to and keep it for top offs and to use up for the following oil change.


Quote:
1) Are bigger sumps a trend? Or is this just me? I only have a sample size of 4. :-)

All three of our vehicles have 7 qt sumps. Not sure if it's a trend though.

Quote:
2) Do you think it might be time for manufacturers to go to a 6 quart jug?
They just need to add a "free 20% more" sticker like they do on soap/shampoo/lotion containers. smile


'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (PUP 0W-40 SRT)
Re: Sump size trends? [Re: mrdctaylor] #4836208
08/10/18 09:03 AM
08/10/18 09:03 AM
Joined: Dec 2017
Posts: 4,620
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline

Joined: Dec 2017
Posts: 4,620
SE British Columbia, Canada
Behold the 10 quart jug. Coming to a store near you?



If you want the job done right......do it yourself.
Re: Sump size trends? [Re: Snagglefoot] #4836215
08/10/18 09:17 AM
08/10/18 09:17 AM
Joined: Oct 2002
Posts: 37,611
Great Lakes
Quattro Pete Offline
Quattro Pete  Offline

Joined: Oct 2002
Posts: 37,611
Great Lakes
Originally Posted By: Snagglefoot
Behold the 10 quart jug. Coming to a store near you?
Yeah, Rotella has been available in 2.5 gal jugs down here for years. Chevron Delo and Mobil Delvac come in 2.5 gal jugs as well.



'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (PUP 0W-40 SRT)
Re: Sump size trends? [Re: mrdctaylor] #4836216
08/10/18 09:17 AM
08/10/18 09:17 AM
Joined: Oct 2008
Posts: 1,586
NC
jstutz Offline
jstutz  Offline

Joined: Oct 2008
Posts: 1,586
NC
I never really thought about it much but my guess would be that it is two fold.

1) Car makers want to keep the oil change intervals long. With today's high power/displacement ratios you need the extra oil to ensure that the oil can hold up to long oci's.
2) There is a push to keep oil viscosities on the lower side. Having the larger sumps would also aid in keeping the oil cooler which would reduce the chance of the oil film breaking down under extremes.

Just my thoughts. Long oci's and keeping oil cooler would be the only reasons that would make sense to me.

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