What oil should i be using for best performance

Supertech 5/30

 

hi mileage syn blend.....

 

Get whatever is on sale

 

Been running SuperTech 10w-30 high mileage conventional in my FIL's '03 Dakota for years.

Engine is well north of 100k. Zero issues. In fact, when I pulled the valve covers off about a year ago to replace the gaskets...the valve train looked great....clean, no sludge

 

Pennzoil Ultra Platinum,Mobil1 Extended Performance,AMSOIL Signature Series,Royal Purple.

 

Lol

 

New to TW but a long time member of the My350Z forum. As one might imagine the subject has discussed at length. Those who have taken the time to peruse this lengthy link;
https://540ratblog.wordpress.com/2013/06/20/motor-oil-wear-test-ranking/
pretty much accept the well documented test results.

I use Mobil1 5w-30 & don't worry about it.

Copy/paste:
Here is how these oils ranked just among themselves, according to their Wear Protection Capability. All wear protection capability testing was performed at 230* F, and the higher the psi value, the better the wear protection. I also included values for the onset of thermal breakdown for comparison (the thermal breakdown values were rounded to the nearest 5* increment):

1. 5W30 Pennzoil Ultra, API SM synthetic = 115,612 psi, which puts it in the INCREDIBLE wear protection category.
The onset of thermal breakdown = 280* F

2. 5W30 Mobil 1, API SN synthetic = 105,875 psi, which puts it in the INCREDIBLE wear protection category.
The onset of thermal breakdown = 265* F

3. 5W30 Castrol Edge w/Syntec, API SN (black bottle, formerly Castrol Syntec) synthetic = 85,179 psi, which puts it in the GOOD wear protection category.
The onset of thermal breakdown = TBD (I did not test this particular oil for this when I had it on hand)

4. 0W40 Mobil 1, API SN, European Formula, made in the U.S., synthetic = 82,644 psi, which puts it in the GOOD wear protection category.
The onset of thermal breakdown = 285* F

5. 0W40 Pennzoil Ultra, API SN, synthetic = 81,863 psi, which puts it in the GOOD wear protection category.
The onset of thermal breakdown = 260* F

6. 0W30 Mobil 1, API SN, Advanced Fuel Economy, synthetic = 81,240 psi, which puts it in the GOOD wear protection category.
The onset of thermal breakdown = 290* F

7. 0W40 Castrol Edge with Syntec (black bottle), API SN, European Formula, made in Belgium and sold in the U.S., synthetic = 69,307 psi, which puts it in the MODEST wear protection category.
The onset of thermal breakdown = 290* F

8. 0W30 Castrol Edge with Syntec (black bottle), API SL, European Formula, made in Germany and sold in the U.S., synthetic = 69,302 psi, which puts it in the MODEST wear protection category.
The onset of thermal breakdown = 290* F

As you can see from these actual Engineering test values, all the 5W30 oils provide better wear protection than any of the 0W oils. But even so, any of these oils would be acceptable for normal daily driver use. However, for highly loaded High Performance applications where the best possible wear protection is desired, the obvious choice would be 5W30 Pennzoil Ultra, API SM or 5W30 Mobil 1, API SN


Capability ranking at 275*F:

1. 5W30 Pennzoil Ultra, API SM = 97,955 psi (dropped 15% from its 230* value)

2. 5W30 Mobil 1, API SN = 96,323 psi (dropped 9% from its 230* value)
(2% below no. 1 here at 275*)

3. 10W30 Lucas Racing Only = 95,996 psi (dropped 10% from its 230* value)
(2% below no. 1 here at 275*)

4. 5W50 Motorcraft, API SN = 92,545 psi (dropped 11% from its 230* value)
(6% below no. 1 here at 275*)

5. 10W30 Amsoil Z-Rod Oil = 91,351 psi (dropped ONLY 4% from its 230* value)
(7% below no. 1 here at 275*)

6. 20W50 Castrol GTX, API SN = 85,815 psi (dropped 11% from its 230* value)
(12% below no. 1 here at 275*)

7. 5W20 Castrol Edge w/Titanium, API SN = 84,584 psi (dropped 15% from its 230* value)
(14% below no. 1 here at 275*)

8. 10W30 Joe Gibbs XP3 NASCAR Racing Oil = 80,957 psi (dropped 15% from its 230* value)
(17% below no. 1 here at 275*)

9. 5W30 Castrol GTX, API SN = 80,957 psi (dropped 15% from its 230* value)
(17% below no. 1 here at 275*)
NOTE: This is not a typo here, number 8 and 9 here just happened to have the same size wear scar, thus the same psi value.

10. 10W30 Valvoline VR1 Racing Oil, silver bottle = 75,116 psi (dropped 27% from its 230* value)
(23% below no. 1 here at 275*)

11. 0W30 Brad Penn, Penn Grade 1 = 68,768 psi (dropped ONLY 4% from its 230* value)
(30% below no. 1 here at 275*)

12. 5W30 Royal Purple XPR = 66,664 psi (dropped 11% from its 230* value)
(32% below no. 1 here at 275*)

 

Oh boy, here we go.

I use any name brand full syn thats on sale at wally, usually 20-22 per 5 qt, follow mileage guidelines, all my vehicles have been fine in the oil department

 

www.google.com/amp/s/jalopnik.com/why-expensive-oil-is-a-waste-of-money-1797241527/amp

 

No, the military doesn't do that. Military hasn't had 2.5 and 5 tons in a long time. And even then we didn't do it.

You may be the smartest kid on the playground, but some of us have first hand knowledge.....

 

All you need is clean oil that meets the specs. Whatever floats your boat. Only exception to meeting the specs is engines with high mileage and loose bearing clearances (meaning actual low measured oil pressure, not just because it has higher mileage),then a higher viscosity oil can boost the pressure and help it last a little longer.
Don't cheap out on the filter, though. I prefer to buy filters from the vehicle manufacturer. I always avoid Fram. YMMV.

 

I have used what ever cheap on sale dino oil there is for past 188k miles every 5k

use what the manual tells you and save your coin for mods unless expensive oil makes you feel better with a lighter wallet

 

The same thing with gasoline. My friend works at a distributor , just additives to the different stations.

 

Best post of 2018 IMO!!

 

M939 isnt used anymore?

 

Yup. People will swear by overpriced shell gas , even though the additives used are literally parts per thousands.

 

Mobil 1 high mileage advance synthetic blend. Then take advantage of the mail in rebate. https://mobiloil.com/en/promotion/mobil-promotions

 

Another thing, maybe personal preference, or maybe the engineer in me. i don't use high mileage oils if there are no signs of leaking seals. Why mess with the seals if theyre fine

 

I’ll bet the op is sorry he asked his question. A zillion responses and almost all are based on pure ignorance and BS. Based on personal preference. Most get their information from short blurbs on the internet or from marketers who make all kinds of claims (many unsubstantiated) about their products. I have never heard of any engine failing because of the brand of oil used. It won’t make one bit of difference whether you use Castro, Redline, Penns, Mobil 1 or any other brand as far as the longevity of your engine. It doesn’t matter if you pay $5 a quart or $100 a quart. All that matters is that you use the proper viscosity and change oil and filter at least at manufacturers specified intervals.