Recent Topics
What is your favorite airline and why?
by ZZman - 11/22/19 11:35 AM
Costco Instant rebate for M1
by Joephu - 11/22/19 11:25 AM
Serpentine belt
by Grambo - 11/22/19 10:50 AM
My 2016 Ford Fiesta Failure
by Mr_Luke - 11/22/19 10:37 AM
Starter Tool set - hand tools for professional work?
by btanchors - 11/22/19 10:20 AM
Acceptable amount of time to get up to speed?
by ls1mike - 11/22/19 09:35 AM
Paint question
by supton - 11/22/19 09:31 AM
SUV tires vs passenger car tires
by Ded Mazai - 11/22/19 09:00 AM
Crysler Crossfire Pro/Con?
by tc1446 - 11/22/19 08:54 AM
Possible to balance a bent steel wheel?
by johnnyh55 - 11/22/19 06:33 AM
Tablet question.
by 007 - 11/22/19 04:29 AM
dexos 1 vs dexos 2
by avi1777 - 11/22/19 02:33 AM
I had to lay it down...
by 02SE - 11/22/19 01:22 AM
Costco Car Buying
by rrretiree7 - 11/22/19 01:06 AM
Tesla Cybertruck
by E365 - 11/21/19 10:30 PM
Tesla Truck Reveal
by Aero540T - 11/21/19 10:06 PM
DIY Engine Rebuild Costs
by Spetz - 11/21/19 10:01 PM
Killer rod
by P10crew - 11/21/19 09:51 PM
Newest Members
hunter9296, Corslayth, oildud, Kylefl1, JDee71
69938 Registered Users
Who's Online Now
98 registered members (53' Stude, Aichiguy, atikovi, 28oz, 928, aquariuscsm, 7 invisible), 2,240 guests, and 21 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics297,774
Posts5,122,265
Members69,938
Most Online3,589
Nov 2nd, 2019
Donate to BITOG
Print Thread
Rate Thread
Hop To
Page 1 of 4 1 2 3 4
5w20 to 0w20, low oil pressure #5099333 05/08/19 09:46 AM
Joined: Jul 2003
Posts: 288
S
Silver Offline OP
OP Offline
S
Joined: Jul 2003
Posts: 288
Hi folks.

I just thought I'd share this for anyone curious or for any thoughts.

I have an '02 Taurus with the 3.0 OHV Vulcan. Currently 104k miles.

I've ran Valvoline Maxlife 5w20 (the blend version) for almost the entire 7000 miles I've had the car. At cold starts on cool or cold mornings I noticed some ticking for the first minute of idle. I did some Techron, Seafoam and finished the OCI with Rislone with no change in the noise.

So I decided to try a thick 0w20 in which case Magnatec seemed like a thicker of that grade. It specs an 8.511 100C viscosity versus the Valvoline Max's 8.9.

The cold start noise is gone but after two days of driving with the 0w20, my low oil pressure light flickers occasionally at idle in hot stopped traffic.

I wonder if these instances point towards not-so-great internal tolerances, or is the 0w just too thin?

I guess I'll look for a 0w or 5w20 with a 100C visc of 8.9 or better. Or maybe I should use a 5w30 like this engine was spec'd for in earlier years? I sure did like the Magnatec. The engine is SO quiet and mileage is already showing a good jump.

Re: 5w20 to 0w20, low oil pressure [Re: Silver] #5099341 05/08/19 09:51 AM
Joined: Aug 2008
Posts: 25,017
StevieC Offline
Offline
Joined: Aug 2008
Posts: 25,017
I'd check the oil pressure using a gauge because you could have a bad sending unit triggering the low oil light at hot idle.
I doubt it's the oil choice, more likely coincidence or the one oil is just enough of a minor difference to trigger the light because the sensor isn't reading properly to begin with.


Last edited by StevieC; 05/08/19 09:51 AM.

'18 Caravan - 45k KM - AMSOIL SS 0w20, Fram Ultra, TC-W3 500:1
'06 Santa Fe - 535k KM (Retired)

There is no such thing as "lifetime" fluids! mad
Re: 5w20 to 0w20, low oil pressure [Re: Silver] #5099357 05/08/19 10:02 AM
Joined: Oct 2004
Posts: 3,398
B
beanoil Offline
Offline
B
Joined: Oct 2004
Posts: 3,398
You are in GA?
Run a 10w30 in it and call it a day.
There are simply times when thin doesn't win. This looks like one of those cases.

Re: 5w20 to 0w20, low oil pressure [Re: beanoil] #5099360 05/08/19 10:03 AM
Joined: Aug 2008
Posts: 25,017
StevieC Offline
Offline
Joined: Aug 2008
Posts: 25,017
Originally Posted by beanoil
You are in GA?
Run a 10w30 in it and call it a day.
There are simply times when thin doesn't win. This looks like one of those cases.

My sister is running 5w20 in her Elantra in Dubai. Want to try that one again?


'18 Caravan - 45k KM - AMSOIL SS 0w20, Fram Ultra, TC-W3 500:1
'06 Santa Fe - 535k KM (Retired)

There is no such thing as "lifetime" fluids! mad
Re: 5w20 to 0w20, low oil pressure [Re: StevieC] #5099365 05/08/19 10:06 AM
Joined: Apr 2008
Posts: 40,651
O
OVERKILL Offline
Offline
O
Joined: Apr 2008
Posts: 40,651
Originally Posted by StevieC
I'd check the oil pressure using a gauge because you could have a bad sending unit triggering the low oil light at hot idle.
I doubt it's the oil choice, more likely coincidence or the one oil is just enough of a minor difference to trigger the light because the sensor isn't reading properly to begin with.



Yes, I'd suspect the sender personally.


2019 RAM 1500 Sport - Mobil 1 EP 0w-20, FRAM Ultra
2016 Grand Cherokee SRT - Ravenol SSL 0w-40, FRAM Ultra
Re: 5w20 to 0w20, low oil pressure [Re: Silver] #5099372 05/08/19 10:08 AM
Joined: Mar 2017
Posts: 11,432
PimTac Offline
Offline
Joined: Mar 2017
Posts: 11,432
I would skip the additives. They are just a waste of money. Going to a 5w30 might be a good route here provided there isn’t any mechanical issue going on. It would be worth checking it out.


2017 Mazda CX5
Havoline Pro DS 0w20
Roki OEM filter.
Re: 5w20 to 0w20, low oil pressure [Re: Silver] #5099373 05/08/19 10:08 AM
Joined: Aug 2004
Posts: 21,291
The Critic Offline
Offline
Joined: Aug 2004
Posts: 21,291
Maxlife has a KV40C of 51.5 and Magnatec is 44. Is it enough to make a difference? I am personally doubtful.

https://sharena21.springcm.com/Publ...bd3/dcefb479-09bd-e711-9c12-ac162d889bd1
https://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/5F4FAC5525D8587080258297004686AC/$File/BPXE-9R7E8H.pdf


2011 Toyota Prius 1.8L - 199K - Pennzoil Platinum 0W-20
2007 Honda Accord 2.4L - 141K - Valvoline Premium Blue Restore 10W-30
Re: 5w20 to 0w20, low oil pressure [Re: StevieC] #5099381 05/08/19 10:13 AM
Joined: Jun 2003
Posts: 11,033
javacontour Offline
Offline
Joined: Jun 2003
Posts: 11,033
Is it a 2003 Elantra?

I'm thinking this is an apples to oranges comparison. An old school OHV 3L Vulcan vs (even if a 2003 Elantra) a more modern OHC 4 banger.

I'm with the run XW-30 in it (pick your favorite value for X) suggestion and call it a day.

Originally Posted by StevieC
Originally Posted by beanoil
You are in GA?
Run a 10w30 in it and call it a day.
There are simply times when thin doesn't win. This looks like one of those cases.

My sister is running 5w20 in her Elantra in Dubai. Want to try that one again?


network down, IP packets delivered via UPS -BOFH
Re: 5w20 to 0w20, low oil pressure [Re: Silver] #5099385 05/08/19 10:15 AM
Joined: Jul 2005
Posts: 33,432
D
demarpaint Offline
Offline
D
Joined: Jul 2005
Posts: 33,432
I'd run a 5W30 in it, which was originally spec'd for that engine. I would also confirm oil pressure with a mechanical oil pressure gauge to be certain there are no engine problems.

Last edited by demarpaint; 05/08/19 10:28 AM.

God Bless Our Troops

Re: 5w20 to 0w20, low oil pressure [Re: javacontour] #5099395 05/08/19 10:20 AM
Joined: Aug 2008
Posts: 25,017
StevieC Offline
Offline
Joined: Aug 2008
Posts: 25,017
Originally Posted by javacontour
Is it a 2003 Elantra?

I'm thinking this is an apples to oranges comparison. An old school OHV 3L Vulcan vs (even if a 2003 Elantra) a more modern OHC 4 banger.

I'm with the run XW-30 in it (pick your favorite value for X) suggestion and call it a day.

Originally Posted by StevieC
Originally Posted by beanoil
You are in GA?
Run a 10w30 in it and call it a day.
There are simply times when thin doesn't win. This looks like one of those cases.

My sister is running 5w20 in her Elantra in Dubai. Want to try that one again?


No it's a 2014. She has had a couple.


'18 Caravan - 45k KM - AMSOIL SS 0w20, Fram Ultra, TC-W3 500:1
'06 Santa Fe - 535k KM (Retired)

There is no such thing as "lifetime" fluids! mad
Re: 5w20 to 0w20, low oil pressure [Re: Silver] #5099401 05/08/19 10:23 AM
Joined: Jan 2013
Posts: 3,476
W
WyrTwister Offline
Offline
W
Joined: Jan 2013
Posts: 3,476
https://www.rockauto.com/en/catalog/ford,2002,taurus,3.0l+v6+ohv,1385771,electrical-switch+&+relay,oil+pressure+sender+/+switch,4588

The sending unit / sensor / switch appears to be a $ 10 - $ 15 part . If it is reasonably accessible , I would replace it . I would also switch to 5W-30 in Georgia .


Wyr
God bless
Re: 5w20 to 0w20, low oil pressure [Re: StevieC] #5099403 05/08/19 10:25 AM
Joined: Apr 2014
Posts: 1,205
G
geeman789 Offline
Offline
G
Joined: Apr 2014
Posts: 1,205
Originally Posted by StevieC
Originally Posted by beanoil
You are in GA?
Run a 10w30 in it and call it a day.
There are simply times when thin doesn't win. This looks like one of those cases.

My sister is running 5w20 in her Elantra in Dubai. Want to try that one again?



Does your sister's Elantra in Dubai have a flickering oil pressure light ... ? Didn't think so.

The OP's car is telling him SOMETHING ... and the first and easiest thing to change is to try a thicker oil. 20 grade is not for every engine ...


2011 SUBARU Impreza 5-door manual / 2016 HONDA Pilot / 2011 MAZDA 2 auto
Re: 5w20 to 0w20, low oil pressure [Re: geeman789] #5099404 05/08/19 10:26 AM
Joined: Aug 2008
Posts: 25,017
StevieC Offline
Offline
Joined: Aug 2008
Posts: 25,017
Originally Posted by geeman789
Originally Posted by StevieC
Originally Posted by beanoil
You are in GA?
Run a 10w30 in it and call it a day.
There are simply times when thin doesn't win. This looks like one of those cases.

My sister is running 5w20 in her Elantra in Dubai. Want to try that one again?



Does your sister's Elantra in Dubai have a flickering oil pressure light ... ? Didn't think so.

The OP's car is telling him SOMETHING ... and the first and easiest thing to change is to try a thicker oil. 20 grade is not for every engine ...

Yes because sending units don't fail all the time versus it being an oil pressure problem which is rare for most engines. smirk2

Last edited by StevieC; 05/08/19 10:26 AM.

'18 Caravan - 45k KM - AMSOIL SS 0w20, Fram Ultra, TC-W3 500:1
'06 Santa Fe - 535k KM (Retired)

There is no such thing as "lifetime" fluids! mad
Re: 5w20 to 0w20, low oil pressure [Re: StevieC] #5099410 05/08/19 10:33 AM
Joined: Apr 2014
Posts: 1,205
G
geeman789 Offline
Offline
G
Joined: Apr 2014
Posts: 1,205
Originally Posted by StevieC

Yes because sending units don't fail all the time versus it being an oil pressure problem which is rare for most engines. smirk2




The engine in question is 17 years old with over a 100 k miles ... MAYBE it is actually an oil pressure problem. And the EASIEST thing to try first is thicker oil.


2011 SUBARU Impreza 5-door manual / 2016 HONDA Pilot / 2011 MAZDA 2 auto
Re: 5w20 to 0w20, low oil pressure [Re: geeman789] #5099415 05/08/19 10:36 AM
Joined: Apr 2008
Posts: 40,651
O
OVERKILL Offline
Offline
O
Joined: Apr 2008
Posts: 40,651
Originally Posted by geeman789
Originally Posted by StevieC

Yes because sending units don't fail all the time versus it being an oil pressure problem which is rare for most engines. smirk2




The engine in question is 17 years old with over a 100 k miles ... MAYBE it is actually an oil pressure problem. And the EASIEST thing to try first is thicker oil.



No, the easiest, and CORRECT thing to do, is verify the bloody oil pressure. If it has low oil pressure, it has a mechanical issue that changing the grade isn't going to resolve. If the oil pressure in fact proves to be just fine, then changing the sender, as the reading has now validated its disfunction, is the next course of action.


2019 RAM 1500 Sport - Mobil 1 EP 0w-20, FRAM Ultra
2016 Grand Cherokee SRT - Ravenol SSL 0w-40, FRAM Ultra
Page 1 of 4 1 2 3 4
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™