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Toyota 5.7L, 0w-20 noisy, STP to thicken? #4909700 10/29/18 09:33 PM
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LS_Powah Offline OP
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Picked up a used Toyota Tundra Platinum with a high mileage 5.7L 3UR-FE. This truck has over 150,000 miles going between Arizona and the pacific northwest (snowbird) and looks nearly new. It will *not* be a daily driver; just when I need a truck. Toyota.com online service history shows great dealer service visits, mileage, and dates. Toyota wants 0w20 syn in this four cam motor, and is OK with 5w20 syn with their VVTi system. I changed the oil first time after my new to me purchase and used 8+ quarts (yes it specs 8) Mobil 1 0w20. Those four cams are super noisy with 0w till it warms up...even starting at 70F. It was cold dead silent upon purchase and right up until I changed the oil. It is not uncommon to put 5w30 in these trucks, so that is what I suspect was in it. I live in Idaho, so teens/rarely single digits cold, but not Alaska cold. 5w will flow down to -30C, we likely won't hit -10C, so I got no problem going to 5w20.

I will definitely change to M1 5w20 HM next OCI.

So here is my question. I want to thicken this brand new 0w20 to cut the cold start noise (and cold start wear). It went from dead silent when cold, to a four cam rattle trap after M1 0w20 was put in (OEM Toyota oil filter). I was thinking STP Synthetic oil treatment or a bit of M1 80w90 gear oil. What say the group?

Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909710 10/29/18 09:51 PM
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danez_yoda Offline
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Strange

When it warms up the oil is thinner not thicker. Thinner oil get up through passages better to quiet the top end down. Thickening the oil should make it worse.

If you have the old oil you could get a UOI to see what viscosity it was.

you might try a different brand. Mobil 1 is "reported" to be noisy in some engines. Pennzoil platinum, TGMO, or Castrol Magnetec are known to quiet engines down.

you could try a lucus, STP oil thickner but you wont know if it was the additives or viscosity that fixed the noise. Maybe swap out a quart or two for a quart of 10W-30.







Last edited by danez_yoda; 10/29/18 09:53 PM.
Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909712 10/29/18 09:58 PM
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RDY4WAR Offline
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I wouldn't use STP or Lucas oil stabilizer even if I was trying to blow up the engine.

I say give Mobil 1 5w-30 HM a try.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909715 10/29/18 10:01 PM
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Bryanccfshr Offline
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Drain the 0w20 and then add
Mobil 1 0w40,M1 high mileage 10w30, or Castrol Magnetect 10w30

Don’t bother with STP or 0w20 questions.
the engine will run awesome.

. There is no difference in oil filling the passages up top between a 0w20 and a 15w40 as long as the oil is above its minimum pumpability temperature.

I would lean towards magnetec for the cold start.

On another note you my want to get the timing chain tensioner inspected.timing chains have been known to lengthen with long term use of lower viscosity oils.

Last edited by Bryanccfshr; 10/29/18 10:06 PM.

2018 Trd Pro 4Runner
2018 Tacoma off-road

Dealer 0w20 to M1 0w40 FS -it depends
Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909717 10/29/18 10:08 PM
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Snagglefoot Offline
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Just throw this in.

17D69930-94C0-4244-8844-147CD9E2AD8A.jpeg

If you want the job done right......do it yourself.
Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909725 10/29/18 10:13 PM
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crainholio Offline
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I'll second the suggestion of Castrol Magnatec 5W-30 or Pennzoil Platinum High Mileage 5W-30.

Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909727 10/29/18 10:16 PM
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oliveoil Offline
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Turn up the radio!

Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909737 10/29/18 10:31 PM
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dubber09 Offline
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I vote PP 5w-30 as well, HM or not.


Kia Sportage 2014 GDI 2.4L
Kia Forte 2014 MPI 1.8L
Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909755 10/29/18 11:39 PM
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chainblu Offline
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Originally Posted by LS_Powah
It was cold dead silent upon purchase and right up until I changed the oil.


I keep going back to that observation. I'm not convinced this is a 0w20 issue or a Mobil 1 issue. I'm wondering if some shenanigans were in play to sell you a vehicle. Along the same lines as putting sawdust in the differential.

Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909757 10/29/18 11:46 PM
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PimTac Offline
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I’ll bet as well the dealership had some heavier oil in it. Swap out the current fill for 5w30. Do you know someone that can use the oil coming out?


2017 Mazda CX5
Valvoline Advanced Synthetic 0w20
Roki OEM filter.
Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909768 10/30/18 01:29 AM
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40w8 Offline
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I'd use a 5w30 or 0w40. Never any gear oil in motor oil. STP is old way to get VI improvers in, like making oil 10w40.

Mobil 1 oils tend to run thin for stated weight. I run Mobil 1 0w40 in a BMW n20 2.0 turbo, and RX8 Mazda

Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909774 10/30/18 03:05 AM
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Linctex Offline
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Originally Posted by LS_Powah
Picked up a used Toyota Tundra .... It will *not* be a daily driver; just when I need a truck. What say the group?


Don't worry about the noise...... for now. Just drive it.

Next time you change the oil, get whatever 15W-40 diesel engine oil you can fine cheap and fill it with 8 quarts of that.


"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: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: LS_Powah] #4909780 10/30/18 04:38 AM
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demarpaint Offline
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I'd use 5W30 in it.


God Bless Our Troops

Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: Snagglefoot] #4909786 10/30/18 05:04 AM
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dlundblad Offline
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Originally Posted by Snagglefoot
Just throw this in.


Originally Posted by Snagglefoot
If you want the job done right......do it yourself.


This combined with your signature is quite scary. You should repost this tomorrow. laugh

Last edited by dlundblad; 10/30/18 05:05 AM.

03 Jeep WJ 4.0 208k
02 Volvo S60 2.4T 199k
97 Chevy Blazer 4.3 175k
04 Audi A4 3.0 210k

Re: Toyota 5.7L, 0w-20 noisy, STP to thicken? [Re: demarpaint] #4909789 10/30/18 05:24 AM
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bbhero Online Content
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Originally Posted by demarpaint
I'd use 5W30 in it.



I agree ^^^^^


Nissan Altima 3.5 Coupe
Cam2 Full synthetic 5w30 Carquest Blue 84356
"Treat your family like your friends and treat your friends like your family."
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