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Must an added quart be same as what's in engine ? #4555741
10/26/17 10:46 PM
10/26/17 10:46 PM
Joined: Oct 2017
Posts: 1
Texas
LittleErnie Offline OP
LittleErnie  Offline OP
Joined: Oct 2017
Posts: 1
Texas
My 2007 Passat uses a quart every 1200 miles. In it currently is 5W40 synthetic.
Does the next quart have to be the same, ie could I add 5W30 or SemiSynthetic
or even non-synthetic. Why not the cheaper as it's just burning it up ?

I'm disappointed as the engine has only 115k miles. The Service Adviser
gave no clear explanation as to why. Said something about the turbocharger.

Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555757
10/26/17 10:59 PM
10/26/17 10:59 PM
Joined: Sep 2004
Posts: 7,518
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,518
Marshfield , MA
I would try a decent 10w30


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555761
10/26/17 11:03 PM
10/26/17 11:03 PM
Joined: Nov 2008
Posts: 9,033
Phoenix
dishdude Offline
dishdude  Offline
Joined: Nov 2008
Posts: 9,033
Phoenix
You can add anything that meets the manufacturer specs, probably 505.01


2018 Challenger SRT
Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555765
10/26/17 11:06 PM
10/26/17 11:06 PM
Joined: Dec 2016
Posts: 6,226
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,226
Waco, TX
Q: "Must an added quart be same as what's in engine?"

A: No, not at all. Just make sure the oil added meets specs for the engine.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555776
10/26/17 11:18 PM
10/26/17 11:18 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
To get the full benefit out of the primary oil, the added oil should be the same.

For example: If the primary oil is high mileage oil and you go and add a quart of the regular version of that same oil, you just now diluted all the special additives of the primary oil.

Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555777
10/26/17 11:18 PM
10/26/17 11:18 PM
Joined: Dec 2011
Posts: 4,737
North Carolina
rooflessVW Offline
rooflessVW  Offline
Joined: Dec 2011
Posts: 4,737
North Carolina
I would keep it topped up with something like GTX 10W-40.

Your consumption isn't too far from "normal"... But the engine may need a re-ring.


"Zed's dead baby, Zed's dead."
Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555798
10/26/17 11:52 PM
10/26/17 11:52 PM
Joined: Dec 2006
Posts: 4,219
Port Orange, Florida
Panzerman Offline
Panzerman  Offline
Joined: Dec 2006
Posts: 4,219
Port Orange, Florida
I'd keep a gallon of Super tech 15w40 for topping it off.



2006 Dodge Ram 2500 Hemi 4x4
2016 Dodge Challenger Scat Pack
Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555799
10/26/17 11:53 PM
10/26/17 11:53 PM
Joined: Aug 2010
Posts: 12,903
Northern Kentucky
901Memphis Offline
901Memphis  Offline
Joined: Aug 2010
Posts: 12,903
Northern Kentucky
I would probably just stick with the proper spec oil but buy 5 quart jugs to save money. At that high rate of consumption you'll only need to change the filter and drain the pan every 3rd scheduled oil change I'd say.


2012 Chevy Cruze LT 1.4T - 50k
2002 Buick Century 130k - Built 4T65e(Maxlife) - Edge 0w40 + Fram XG3980
Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555802
10/26/17 11:55 PM
10/26/17 11:55 PM
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
Johnny2Bad Offline
Johnny2Bad  Offline
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
No.


'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]
Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555806
10/27/17 12:00 AM
10/27/17 12:00 AM
Joined: Sep 2015
Posts: 5,839
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,839
Kalifornia Kollective
No laugh


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555822
10/27/17 12:47 AM
10/27/17 12:47 AM
Joined: Jun 2006
Posts: 423
midland tx
askani79705 Offline
askani79705  Offline
Joined: Jun 2006
Posts: 423
midland tx
Did you change pcv valves ? Neighbor down the street issues with his using copius amounts of oil


2017 Ford F150 NAPA syn 5w30 Fram 11955.
2000 Chevy 2500 Silverado PYB 5w30 AC Delco Filter
Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555845
10/27/17 02:39 AM
10/27/17 02:39 AM
Joined: Jul 2009
Posts: 596
texas
danez_yoda Offline
danez_yoda  Offline
Joined: Jul 2009
Posts: 596
texas
are you running a high mileage oil like Maxlife?

Over time it should stem the effects of oil burning by cleaning some deposits from the rings and allowing them to float again. Also check the NOAK of the oil you are using to see if it is getting hot and evaporating off. That is all the buzz about low NOAK oils.

Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4555863
10/27/17 04:48 AM
10/27/17 04:48 AM
Joined: Sep 2013
Posts: 10,442
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,442
Indiana
The PCV as Askani mentioned is a place to start.

If money is an issue, Mobil 1 has a rebate right now.

If you do want to use a different oil, I would try to find a 10w40.


03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: Must an added quart be same as what's in engine ? [Re: dlundblad] #4555934
10/27/17 06:40 AM
10/27/17 06:40 AM
Joined: Aug 2010
Posts: 5,651
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,651
Champlain/Hudson Valley
To Little Ernie: Do you do your own oil changes? If you do, trying one of the suggested oils would be no big deal.

Re: Must an added quart be same as what's in engine ? [Re: LittleErnie] #4556056
10/27/17 09:22 AM
10/27/17 09:22 AM
Joined: Oct 2012
Posts: 4,595
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,595
Taiwan
No. An added quart is usually cleaner.

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