Mobil 1 synthetic vs 15000 mi synthetic vs 1 year synthetic

[mike69440]

And even if I had a vehicle that called for 0w20, I would never use less than 5w20. Far more shear stable and uses far fewer viscosity modifiers in the mix. And there is not a dealer or OEM on the planet that can tell the difference between 0w20 and 5w20 if they tested it. 5w20 is rated down to -30C / -22F and a 0w20 is rated down to -35C / -31F. Not a lot of folks see actual temps that low except in the northern most tier of the country and Canada. No... wind chill doesn't count!

I will not use 0W-20 either.

This is the oil Subaru recommends but other than slight ly less MPG, 5W-20 Winter, and 5W-30 Summer.

I also want to point out, if you do a lot of stop and go city driving and short hops, Change your oil. Warm weather long drives, go a year, your fine. I have a crappy oil water separator in my PVC line in my Cobra. You should see the milky oily crap it collects on cool days short runs. Even though the separator is only about 50% effective. that's a lot of water it is keep out of the oil.

Warm weather long drives, the oil stays clean forever. I use 0W-40 Mobil1 Euro Formula. 90K miles on a boosted 600 rwhp 4.6L 32V V8 that has never had a valve cover removed. Change oil yearly.

 

[Copperhead]

I've researched WAY too much about oil:

The higher the psi the oil has, the better.

Wear protection reference categories are:

Over 105,000 psi = INCREDIBLE wear protection

90,000 to 105,000 psi = OUTSTANDING wear protection

75,000 to 90,000 psi = GOOD wear protection

1. 5W30 Pennzoil Ultra, API SM synthetic = 115,612 psi.

2. 5W30 Mobil 1, API SN synthetic = 105,875 psi

3. 10W30 Valvoline VR1 Synthetic Racing Oil, API SL (black bottle) = 101,139 psi

4. 5W20 Castrol Edge with Titanium, API SN synthetic = 99,983 psi

5. 5W30 Pennzoil 填ltra Platinum, Pure Plus Technology, made from pure natural gas, API SN = 99,039 psi This oil was introduced in 2014, and comes in a dark gray bottle with a blue vertical stripe on the label.

6. 0W20 Mobil 1 Advanced Fuel Economy, API SN synthetic = 96,364 psi

7. 5W20 Mobil 1, API SN synthetic = 94,663 psi

8. 5W20 Valvoline SynPower, API SN synthetic = 94,460 psi

I saw where someone posted this kind of information several years ago on several forums. Interesting for discussion purposes. Not sure it really means as much as what is being asserted. For me, I don't use any of the brands listed and never have. And all my engines have lasted far longer than typical averages. This kind of thing is akin to the synthetic vs conventional base oil debates. Folks tend to forget that motor oil is a package, with the add pack making up 20% of any motor oil. How that package is put together speaks volumes how well it actually does. And surprisingly, many of the brands many folks overlook are equal or better than many of the highly marketed name brands.

A glance over the oils at the Petroleum Quality Institute of America website, there are even conventional oils that put some synthetics to shame. One for instance, is Pennzoil 10w30 conventional. In some ways, it is a better package and offers some areas of better performance than many high end synthetics. Even PQIA was surprised, so they retested the sample to confirm its high quality.

While PSI might give one aspect and may mean something, it is just one of many aspects about oils that determine their ability to perform.

 

[Gale Hawkins]

I've researched WAY too much about oil:

The higher the psi the oil has, the better.

Wear protection reference categories are:

Over 105,000 psi = INCREDIBLE wear protection

90,000 to 105,000 psi = OUTSTANDING wear protection

75,000 to 90,000 psi = GOOD wear protection

1. 5W30 Pennzoil Ultra, API SM synthetic = 115,612 psi.

2. 5W30 Mobil 1, API SN synthetic = 105,875 psi

3. 10W30 Valvoline VR1 Synthetic Racing Oil, API SL (black bottle) = 101,139 psi

4. 5W20 Castrol Edge with Titanium, API SN synthetic = 99,983 psi

5. 5W30 Pennzoil “Ultra” Platinum, Pure Plus Technology, made from pure natural gas, API SN = 99,039 psi This oil was introduced in 2014, and comes in a dark gray bottle with a blue vertical stripe on the label.

6. 0W20 Mobil 1 Advanced Fuel Economy, API SN synthetic = 96,364 psi

7. 5W20 Mobil 1, API SN synthetic = 94,663 psi

8. 5W20 Valvoline SynPower, API SN synthetic = 94,460 psi

I would call this list of 8 to most likely offer equal protection as do most motor oils today meeting current standards.

The below I found interesting.

Model T Ford Forum: OT - Oil weight and pressure ratings for various brands

 

[marchanna]

^^ Interesting article/post. Definitely good data to have.

There are a lot of factors that impacts the protection your oil provides over time.

In the end, I think oil analysis is the best. Take out a sample after you've put 10K plus on it, and see if it's still protecting your engine. If it's got high concentrations of wear metals, you need to change your oil more frequently, or you need to switch brand/grade of oil.

I think that generally the 20weights are good for lower compression engines that aren't being revved hard. Under those conditions, the longevity of the oil will depend on the chemistry. In my case, I don't own any engines that a 20 weight oil is suitable for, so I don't bother with it.

 

[Peter 315]

I have a 2010 ford focus 200k I change the oil between 5 and 10 k ford motorcraft oil 5w-20 synthetic blend. dosen't use any oil

 

[marchanna]

I have a 2010 ford focus 200k I change the oil between 5 and 10 k ford motorcraft oil 5w-20 synthetic blend. dosen't use any oil

That's a low compression engine and it sounds like you're diligent in changing the oil. Changing the oil within the limits of its protection/useful life is the most important thing.

Now, I wouldn't recommend using that same oil in your tractor or your Porsche.

 

[Kurttb1]

I've researched WAY too much about oil:

The higher the psi the oil has, the better.

Wear protection reference categories are:

Over 105,000 psi = INCREDIBLE wear protection

90,000 to 105,000 psi = OUTSTANDING wear protection

75,000 to 90,000 psi = GOOD wear protection

1. 5W30 Pennzoil Ultra, API SM synthetic = 115,612 psi.

2. 5W30 Mobil 1, API SN synthetic = 105,875 psi

3. 10W30 Valvoline VR1 Synthetic Racing Oil, API SL (black bottle) = 101,139 psi

4. 5W20 Castrol Edge with Titanium, API SN synthetic = 99,983 psi

5. 5W30 Pennzoil 填ltra Platinum, Pure Plus Technology, made from pure natural gas, API SN = 99,039 psi This oil was introduced in 2014, and comes in a dark gray bottle with a blue vertical stripe on the label.

6. 0W20 Mobil 1 Advanced Fuel Economy, API SN synthetic = 96,364 psi

7. 5W20 Mobil 1, API SN synthetic = 94,663 psi

8. 5W20 Valvoline SynPower, API SN synthetic = 94,460 psi

I could not find a PSI listing for Pennzoil 10w30 Platinum would it be similar to the 5w30

 

[marchanna]

I could not find a PSI listing for Pennzoil 10w30 Platinum would it be similar to the 5w30

I think that would be a bad assumption. It痴 a different product line and a different grade, and therefore the pressure rating could be significantly different.