5w-30

[GSPHerder]

Food for thought, this guy is doing oil analysis's. At 20K mile analysis showing a .5 fuel dilution and iron wear amongst other things. Good question is will a thicker oil lessen fuel blow by?

He goes on to say you gotta change oil at 5k because the analysis shows at that point the oil is close to being out of spec. (so much for the manual recommended 10k oil change) A good question would be where is a 30w at 5k or 10k miles?

He tries to guess why at 20k miles the truck is showing more wear, but wild guess as best. Its his truck and he can do what he wants for sure, but that's the point for me personally that I would decide the oil is not working and make immediate changes.

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[32spoke]

Food for thought, this guy is doing oil analysis's. At 20K mile analysis showing a .5 fuel dilution and iron wear amongst other things. Good question is will a thicker oil lessen fuel blow by?

He goes on to say you gotta change oil at 5k because the analysis shows at that point the oil is close to being out of spec. (so much for the manual recommended 10k oil change) A good question would be where is a 30w at 5k or 10k miles?

He tries to guess why at 20k miles the truck is showing more wear, but wild guess as best. Its his truck and he can do what he wants for sure, but that's the point for me personally that I would decide the oil is not working and make immediate changes.

Liquid contamination from fuel and water/condensation will have impact upon oil quality. Oil filters do not address liquid contamination, therefore I always change oil at 5k miles, not 10k miles like the dealer wanted-
I don’t believe that oil viscosity will affect fuel bypassing the piston rings. The engine has low tension piston rings to improve mileage.. has anyone verified fuel contamination in their oil analysis ? I haven’t submitted any oil to test yet, but I am becoming curious.. I just might..

 

[MustardTiger]

I never, ever, for one second considered a Toyota motor might not make it to 60k miles. If that was an issue for me than I would have never purchased it. Even if something did go sideways I'm not concerned that my 30w will void my warranty.

What I am concerned about is running a 20w and then add in the typical fuel dilution and your not even close to 0-20. If your okay running a lighter oil because Toyota is more concerned about their CAFE standards and if you're okay with that because the manual tells you too then good luck to you. Sincerely

I was gonna say something similar yesterday, but figured the Oh-20 guys would throw another book at me (or maybe their purse lol). Seriously, if the engine in this truck is SO f'ing sensitive and fragile that it's completely forbidden to use 5w30 oil in it without risk of total engine failure ...then I don't want it! I'll go buy something else and be done with Toyota.

Get your head out of the sand guys. Stop following every little thing as if "mandatory" and "required" in life...

 

[MustardTiger]

 

[maxx075]

You guys are still thinking too high level. You need to delve down into the quantum physics/quark level to ensure that the elementary particles that are interacting with the molecules of the block and rings aren't doing so on a molecularly degrading scale. This will ensure that your oil is not diluting via the effects of quantum entanglement/tunneling.

 

[GSPHerder]

Interesting MustardTiger, the 5w-20 didnt do too bad.

 

[GSPHerder]

you guys are still thinking too high level. You need to delve down into the quantum physics/quark level to ensure that the elementary particles that are interacting with the molecules of the block and rings aren't doing so on a molecularly degrading scale. This will ensure that your oil is not diluting via the effects of quantum entanglement/tunne

courtesy of chat gpt

Extra nerdy:
“Already accounted for. The oil system operates within a controlled quantum regime to prevent quark decoherence and unwanted tunneling across the ring–cylinder boundary.”


Playfully sarcastic:
“Thanks for flagging that. We’ve been so focused on tribology we almost forgot to stabilize the subatomic particle interactions.”


Physics joke escalation:
“We checked. The oil only entangles with the dipstick during measurement, which unfortunately collapses the viscosity wavefunction.”


My favorite (balanced witty):
“Good thinking. We’ll run the engine through a quark-alignment cycle and make sure the oil isn’t quantum-tunneling past the rings again.”

 

[MustardTiger]

You guys are still thinking too high level. You need to delve down into the quantum physics/quark level to ensure that the elementary particles that are interacting with the molecules of the block and rings aren't doing so on a molecularly degrading scale. This will ensure that your oil is not diluting via the effects of quantum entanglement/tunneling.

 

[DENNISD]

I was gonna say something similar yesterday, but figured the Oh-20 guys would throw another book at me (or maybe their purse lol). Seriously, if the engine in this truck is SO f'ing sensitive and fragile that it's completely forbidden to use 5w30 oil in it without risk of total engine failure ...then I don't want it! I'll go buy something else and be done with Toyota.

Get your head out of the sand guys. Stop following every little thing as if "mandatory" and "required" in life...

Well using your own logic, the lighter oil should do the trick. After all, if the engine is not "f'ing sensitive and fragile" it should easily handle that while getting better fuel mileage as opposed to the thicker viscosity.

If it doesn't, trade your truck off and get a Model T and you won't need to engage this debate of thicker oil viscosity. Pour the thicker oil in with confidence knowing that it will most likely outlast you.

 

[MustardTiger]

Interesting MustardTiger, the 5w-20 didnt do too bad.

Not as bad as 0w16 or 0w20…but gotta remember this is the standard Pennzoil Platinum he tested, so just a very average “synthetic” oil. The Ultra would fair better yet, as would many other top shelf oils. I still think accounting for fuel dilution, a 30 wt oil is highly beneficial

 

[MustardTiger]

Well using your own logic, the lighter oil should do the trick. After all, if the engine is not "f'ing sensitive and fragile" it should easily handle that while getting better fuel mileage as opposed to the thicker viscosity.

If it doesn't, trade your truck off and get a Model T and you won't need to engage this debate of thicker oil viscosity. Pour the thicker oil in with confidence knowing that it will most likely outlast you.

There there, I’ll hold your purse for you, Dennis

 

[DENNISD]

There there, I’ll hold your purse for you, Dennis

I am guessing your "thicker oil" is compensating for something else?

 

[izzy]

I've never gone longer than 4k on a change on the truck and in all honesty 2.5k fits into our schedule better. We do go offroad and it can get pretty strenuous, always uphill for extended durations in 80F weather. I'd do 3k but that messes up the rest of the service schedule intervals. We also do a lot of short trips, oil temp frequently does not get to operating ~200F for long enough to cook contaminants.

No harm tbh, anyone arguing that this engine will be more reliable than the 1GR is ignoring physics and it's OKAY to enjoy the thing you spent money on, but don't be blind, it's not perfect... it's honestly not even the best version of the Tacoma that Toyota has ever made, they did that already with the 2.5G lol

You can't make more power with less pistons and expect better reliability, that's just not how this works. Change that oil often peeps.

 

[GSPHerder]

Interestingly, my very first vehicle purchase was a new 84' Toyota truck, my last one was a Ram Power Wagon. I've mostly had a Toyota or two in the driveway my entire life so I'm pretty familiar with them. Previously for me you just poured in mobile 1 and you were done. No rocket science needed.

The PW folks easily have more than 100 pages on one thread of oil discussions and oil analysis's. They love to nerd out on all the different oils and additives and analysis's and have done a great job of sharing wisdom.

"Interesting" because people "here" are much more adverse to anything that challenges conventional wisdom. e.g. that dude on his video that started out with only use 0w-20 then blamed increased engine wear "maybe" because of his new tires.

Pretty simple- If your engine is showing increased engine wear change your oil. No need to fall on your sword.

Sharing idea's, charts, oil analysis, real world experience is a good thing!

 

[Don Hoe]

motor is engineered for 0W20. Not sure why there’s so many hell bent against it. Oil technologies have changed, engine technologies of changed, why apply old school thoughts, just change oil regularly, a video from a couple weeks ago,

I seen a short video of his, he says modern vehicles have computer controlled oil pumps. The oil flow is tuned to the oil the manufacture recommends for that vehicle. If you want to risk that putting a higher weight oil not having the correct oil flow is up to you.

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