Anyone Using 5W-30 Oil? Tell Me your Opinion/Thoughts

[Stan H]

Same for me - with 0w20

So the point is? Maybe there is no point LOL

and that could be due to the change in the oil chemistry, not viscosity.
If you buy a 0w20 and a 5w30 from the same company, there will be variations that alone can account for analysis changes - as well as your own engine age, driving, loads, temps and so on.

so far, there's no data that is able to show that a change in viscosity alone does anything - because people also change either brands, or even if the same brand, the chemistry will be different.
So at this point - it's literally impossible to test for the change in viscosity alone

You can find at least two people in the Wrangler areas who had cam failures - and ran heavier oil. Their conclusion was a shrug - oh, well, guess it wasn't that.

All I'm saying is - meh, there's no evidence of anything, and there is at least some evidence (although limited cases) where viscosity just didn't matter.
(and millions on the road doing well may suggest something?)

Someone posted a video from lake speed talking about a fake 0w-20 vs 5w-30 video mostly AI . Said the video had actually cabbage some of his stuff. In the video Lake said that the took 7 yrs. Of test results on engines all above 10k miles and 5w-30 didn't do Jack crap and the wear metals etc. We're very similar . Now I aint say Im right . I think its more in the filter and how ya run em than the oil .
OW-20 filter change at 50% life . Oil and filter @ 10% .
Filter Wix 10010 & Amsoil 0W-20 signature series.

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[Stan H]

“Random guy” here to weigh in on a data point I gathered when switching one time to 5/30 from 0/20. I have an oil catch can and would regularly see 250ml of oil in there every 5000 kms (3000 miles) on 0/20. When I switched (one time) to 5/30 and ran that same distance, the oil in the catch can was only 150ml, dropping 100ml.

Gotta hand it to two members here, @StanH for running over 140k + miles, only on 0/20 and you couldn’t pay him enough to switch up and then there’s @Hootbro for running 40 weight oil and doing quite well from his oil analysis reports. That’s all random guy has to say.

Random guy #2 appreciates what Random guy #1 said . Im sorry im a Amsoil Fanboy .. let the melee begin.

 

[Spur]

Always run 5-30 and have from the beginning. No problem at all. Would never consider running 5-20.

 

[a1rwg00]

Looking for your opinion and thoughts on using 5W-30 in my gladiator to help with the tapping and longevity of the engine.

Hello - I was also curious about this and happened to watch a MotorTrend with Pat Goss (the mechanic) talking about this subject. He was pointing out that newer technology engines have very small cavities that they need to get oil flowing to and having the zero weight oil allows this to flow to all these tiny cavities, otherwise a thicker viscosity may not do as good a job. I have not noticed a "tapping" but having lived with a BMW F10 for 15 years and those mechanical lifters always making a noise, perhaps I just have not heard them yet. Hope this helps!

 

[Stan H]

Always run 5-30 and have from the beginning. No problem at all. Would never consider running 5-20.

These take 0W-20 not 5W-20

 

[JohnWick]

and that could be due to the change in the oil chemistry, not viscosity.
If you buy a 0w20 and a 5w30 from the same company, there will be variations that alone can account for analysis changes - as well as your own engine age, driving, loads, temps and so on.

so far, there's no data that is able to show that a change in viscosity alone does anything - because people also change either brands, or even if the same brand, the chemistry will be different.
So at this point - it's literally impossible to test for the change in viscosity alone

You can find at least two people in the Wrangler areas who had cam failures - and ran heavier oil. Their conclusion was a shrug - oh, well, guess it wasn't that.

All I'm saying is - meh, there's no evidence of anything, and there is at least some evidence (although limited cases) where viscosity just didn't matter.
(and millions on the road doing well may suggest something?)

EVERYONE is an armchair oil engineer on the internet.

Meanwhile I know one personally.

His advice? Run what the OEM recommends. Use a high quality oil with a good additive package, and do analysis.

I don't know much about oil, so I'm going to do what he says.

 

[Spur]

These take 0W-20 not 5W-20

l live in a climate that makes 0
Weight unnecessary.

 

[JohnWick]

l live in a climate that makes 0
Weight unnecessary.

Does the manual recommend a different weight for warmer climates?

 

[willys 41]

I used to run 5w30 put now running 5w40.
5w40 is what the Maserati 3.0 runs witch is a smaller displacement of the Jeep v6 Pentastar engine.

 

[MPMB]

What’s the best all terrain tire?

Will 35s fit?

 

[Spur]

Does the manual recommend a different weight for warmer climates?

Don’t know. Don’t care

 

[JohnWick]

Don’t know. Don't care

LOL

So, you know more than the engineers who spec the oil.

ROFL even.

 

[ShadowsPapa]

EVERYONE is an armchair oil engineer on the internet.

Meanwhile I know one personally.

His advice? Run what the OEM recommends. Use a high quality oil with a good additive package, and do analysis.

I don't know much about oil, so I'm going to do what he says.

Even Lake basically keeps suggesting that................. but there are plenty of engineers that know better (on forums everywhere) and keep thinking that thicker is better.


Have to laugh about the extreme change from 20 to 40 as it's a given, proven, even, with tests on real engines, that jumping that much leads to hotter oil, and hotter engine parts - and then they complain about engine heat. Uh, they cause their own problems.

From those oil engineers -

it's crucial to use the correct viscosity for the application, as too-high viscosity can cause other issues like increased drag and heat.

I will do what I believe to be best and not rely on epa bullshit.

So you believe ithe engineers haven't worked to make the oil and engines work together...................

 

[Jrgunn5150]

My simple minded self just puts in what the cap says.

I've run multiple vehicles over 200,000, and 300,00, and one over 400,000.

Never had an engine failure in one of my daily, normal, go to town vehicles.

 

[Jrgunn5150]

Most wear happens on cold start. I prefer not to use 0 weight oil. You do what you want.

If you believe this, 0 weight will cover the bearings fastest on start up.

Not sure what coats the bearings on my 65 F250 that only runs once a year for about 4 hours and has only ever been filled with 15-40 since 1994, but nevertheless...

100% agree everyone is going to do whatever their mental gymnastics lead them to believe is best. Which is why these threads are pointless.

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