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#4469650 - 07/25/17 06:46 AM Top off 10w-30 with 20w-50 ok?
Camprunner Online   content


Registered: 02/19/08
Posts: 1033
Loc: MA.
Changed oil with Valvoline 10w30 a few days ago long story short installing new oil filter now (see post on bad STP filter) have Napa (Valvoline) 20w50 synthetic on the shelf would like to use a quart to top off I know it will increase the viscosity but it is summer is this ok?


Edited by wwillson (07/25/17 07:03 AM)
Edit Reason: subject clarification

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#4469656 - 07/25/17 06:53 AM Re: Top off 10w-30 with 20w-50 ok? [Re: Camprunner]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1654
Loc: Crawfordville FL
Should be fine. How many quarts is your sump total?
_________________________
2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4469672 - 07/25/17 07:15 AM Re: Top off 10w-30 with 20w-50 ok? [Re: Camprunner]
bioburner Offline


Registered: 09/19/16
Posts: 1418
Loc: Minnesota
Should be fine as Silver stated. If the oil is at the bottom of the operating range why not just get the proper oil? We are only a couple months away from cooler weather
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97 Ford E350 D,99 F350 dually D
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#4469677 - 07/25/17 07:18 AM Re: Top off 10w-30 with 20w-50 ok? [Re: SilverFusion2010]
Camprunner Online   content


Registered: 02/19/08
Posts: 1033
Loc: MA.
Originally Posted By: SilverFusion2010
Should be fine. How many quarts is your sump total?


Sump is approx 5.5 quarts Nissan VQ40DE V6 5w30 is recommended has 60,000 miles

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#4469683 - 07/25/17 07:20 AM Re: Top off 10w-30 with 20w-50 ok? [Re: Camprunner]
Camprunner Online   content


Registered: 02/19/08
Posts: 1033
Loc: MA.
This change will see high load lots of towing and change out at end of September with prob 4-5,000 miles.

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#4469697 - 07/25/17 07:36 AM Re: Top off 10w-30 with 20w-50 ok? [Re: Camprunner]
bioburner Offline


Registered: 09/19/16
Posts: 1418
Loc: Minnesota
I see no issues. Good engine, just wished that they had detuned it a bit for better mileage. My X with all fluids changed to synthetic I am getting 21 mpg. Happy travels
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#4469730 - 07/25/17 08:06 AM Re: Top off 10w-30 with 20w-50 ok? [Re: Camprunner]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
Just one quart ? Won't hurt a thing. Your engine may actually tell you it likes it that way.

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#4469767 - 07/25/17 08:45 AM Re: Top off 10w-30 with 20w-50 ok? [Re: Camprunner]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 11963
Loc: N.H, U.S.A.
I topped off my 10w30 with 5w20 on the QR25DE NISSAN 4 banger. The engine was telling me it wanted a LIGHTER oil to run correctly.

What's the Motor telling you?

Does this have VVT? Hydraulic VVT are viscosity "picky" to get good low end torque; you have to keep the intake cam advanced at low RPM. Increasing RPM + Oil pressure retards cam timing.


Edited by ARCOgraphite (07/25/17 08:47 AM)
_________________________
2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter

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#4469814 - 07/25/17 09:18 AM Re: Top off 10w-30 with 20w-50 ok? [Re: Merkava_4]
gfh77665 Offline


Registered: 09/01/08
Posts: 3789
Loc: Southeast Texas
Originally Posted By: Merkava_4
Just one quart ? Won't hurt a thing. Your engine may actually tell you it likes it that way.


Agreed. It will be beneficial to your engine. Oil naturally shears down to a lower viscosity, so topping off with a quart of heavier weight oil will likely bring it back to the perfect range. I purposely use higher viscosity top off oil.

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#4470040 - 07/25/17 01:43 PM Re: Top off 10w-30 with 20w-50 ok? [Re: Camprunner]
Dumc87 Offline


Registered: 06/05/10
Posts: 591
Loc: Florida
Funny this thread mentions Nissan
I use to typically put a 5w30 or 5w40 in the VG30DE in my 300ZX, but I swear the engine "told" me it ran best on M1 15w50
_________________________
'90 Z32 - PP HM 10w30
'98 ZJ - PYB HM 10w40
'02 G20 - QS UD 5w30
'09 Matrix - QS UD 0w20

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#4470156 - 07/25/17 03:26 PM Re: Top off 10w-30 with 20w-50 ok? [Re: Dumc87]
Malo83 Offline


Registered: 08/08/08
Posts: 1999
Loc: Cali
My old SBC tells me it'll run on anything, 30wt,20w50, 10w40,10w30 and even 15w40, as long as the oil is fresh and has new filter as it should be! thumbsup Cheers2

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#4470160 - 07/25/17 03:30 PM Re: Top off 10w-30 with 20w-50 ok? [Re: Camprunner]
2strokeNorthstar Offline


Registered: 07/19/17
Posts: 270
Loc: PR CA, USA
Oil is better than no oil. Ideal? No. Nothing will happen though.

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