5w30 over 5w20

[tropic]

Originally Posted By: milwaukee
Originally Posted By: BuickGN
It happens all the time, thicker oils quieting noises. Once in a while a thinner oil will quiet an engine. Not sure what's so hard to believe.


It does not happen when we we are talking 5w-20 and 5w30.

It does, actually.

 

[milwaukee]

Huh whatever.

Enjoy the calming effect of 5w30.

 

[HTSS_TR]

Originally Posted By: BuickGN

It happens all the time, thicker oils quieting noises. Once in a while a thinner oil will quiet an engine. Not sure what's so hard to believe.

 

[StevieC]

Originally Posted By: HTSS_TR
Originally Posted By: BuickGN

It happens all the time, thicker oils quieting noises. Once in a while a thinner oil will quiet an engine. Not sure what's so hard to believe.

I approve of the Approval!

 

[ekpolk]

Originally Posted By: milwaukee
Huh whatever.

Enjoy the calming effect of 5w30.


Perhaps you should consider enjoying the calming effect of having an open mind and thinking on a deeper level.

Think it through. I can easily hear small changes in the noise my cars generate with small changes in load. The car makers want us to use thinner oils for, among other reasons, fuel economy. If a thinner oil is helping you get better fuel economy, obviously, for a given set of conditions, the engine is under less load with the lighter oil (less total resistance to overcome). With such changes, we see all sorts of differing results, changes in fuel mileage, UOA results, etc. But you want us to believe that there could not be any change in the noise/sound pattern produced by the engine?

The most obvious example of this phenomenon I've seen was with my 04 G35. For the first couple changes, I used Havoline 5w30, without question, one of the finest dino lubes. Then I changed to green German Castrol. The sound change was plain and obvious. The engine sounded much smoother and mellower than it did on the thinner dino, particularly when pushed into the higher rpm ranges. You'd have to have been deaf not to be able to notice the difference.

Now, by contrast, I'm sure that there are some cars where you perhaps can't hear the difference between various oils, but with others, you certainly can.

 

[ekpolk]

Oh, I should also add that it's well accepted that certain oils are able to quell the nasty sound of piston slap that has become common in certain engines. Usually, it's particular, thick-for-the-application oils that put an end to piston slap.

 

[StevieC]

Originally Posted By: ekpolk
Oh, I should also add that it's well accepted that certain oils are able to quell the nasty sound of piston slap that has become common in certain engines. Usually, it's particular, thick-for-the-application oils that put an end to piston slap.


FWIW: A while back I posted about my Aunts Honda Civic that had piston slap, and should I use a 20wt or a 30wt. The consensus was not to worry about it and to use the 20wt. I ended up putting in the 30wt in it and it did quiet it down to where we could no longer hear it.

 

[lovcom]

Using 5w30 over 5w-20 does not make an engine run quieter. It's all in your your head, and my father's head too:

He told me to "DUMP" the 5w-20 out of his Civic because he claims it makes his engine run noisier. So I did dump the 5w-20 and put in more 5w-20. Then I told him I put in 5w30.

Guess what he said? He told me the engine runs "much quieter".


Unless you have a sound laboratory, with $1,000,000 insturments for testing, I will not believe your unscientific claims. I would expect such claims from a high school drop out living in a trailer park, but no one educated.

I have run 0w-20, 5w-20, 0w-30, 5w30 and 0w-40 in my 1.5L Yaris and it all sounds the same.

 

[StevieC]

Trust me it does work... At least in this one engine. If she didn't live 200KM from me I would make a Youtube video for you not everyone has psychological issues like your dad might.

 

[HTSS_TR]

Originally Posted By: lovcom
Using 5w30 over 5w-20 does not make an engine run quieter. It's all in your your head, and my father's head too:

He told me to "DUMP" the 5w-20 out of his Civic because he claims it makes his engine run noisier. So I did dump the 5w-20 and put in more 5w-20. Then I told him I put in 5w30.

Guess what he said? He told me the engine runs "much quieter".


Unless you have a sound laboratory, with $1,000,000 insturments for testing, I will not believe your unscientific claims. I would expect such claims from a high school drop out living in a trailer park, but no one educated.

I have run 0w-20, 5w-20, 0w-30, 5w30 and 0w-40 in my 1.5L Yaris and it all sounds the same.


My 2000 MB E430 is much quieter with xW20 synthetic compares with M1 0W40 that is recommended by MB. With M1 0W40, I could not hear the A/C fan until it was at level 4 or 5 out of 7 speed fan when I was at red light, with xW20 I can hear the fan noise even at level 1 at red light. That how quiet the engine is with xW20 oil.

I'm not saying all engines will be quieter with thinner oil, but my particular engine in this particular E430 IS. No sound measurement is needed for verify that.

 

[tropic]

Originally Posted By: lovcom
Unless you have a sound laboratory, with $1,000,000 instruments for testing, I will not believe your unscientific claims. I would expect such claims from a high school drop out living in a trailer park, but no one educated.

That's pretty harsh. I appreciate the value of skepticism when you have data to the contrary, but I think you might be parading your own ignorance on this one.

 

[ZZman]

NO....you have nothing to worry about. Run the 5w30 if you want.

 

[ekpolk]

Originally Posted By: lovcom
Using 5w30 over 5w-20 does not make an engine run quieter. It's all in your your head, and my father's head too:

He told me to "DUMP" the 5w-20 out of his Civic because he claims it makes his engine run noisier. So I did dump the 5w-20 and put in more 5w-20. Then I told him I put in 5w30.

Guess what he said? He told me the engine runs "much quieter".


Unless you have a sound laboratory, with $1,000,000 insturments for testing, I will not believe your unscientific claims. I would expect such claims from a high school drop out living in a trailer park, but no one educated.

I have run 0w-20, 5w-20, 0w-30, 5w30 and 0w-40 in my 1.5L Yaris and it all sounds the same.


Are you incapable of recognizing that you are just as susceptible of being seduced by subjective analysis as anyone else????

OK, your comments will be accorded the appropriate minimal level of trust. . .

 

[Bluestream]

Originally Posted By: gfh77665
Originally Posted By: oilchangeguy
Would like to go to a good Dino. 5W20 holds up in the heat?


Warrenty issues (fears?) is EXACTLY why I stay with 5-20, even in our eternal Texas heat. I grit my teeth, use full synthetic as a hedge against thermal degradation, and look foeward to the day I can put 5-30 in my Honda freely! I urge you to use synthetic 5-20!


If you want to use 5w30 that bad, why not just put in in. If you have problems, drain it out, return the 5W-20 and THEN take it to the dealer. No way they will know anything...

 

[opposite_locker]

My Dodge 4.7 was a bit noisy (albeit tolerable) with Mobil 1 0w20, which was run in the engine for the first 40k miles or so. Then I switched to PP 5w20 and the noises quieted a bit for the first 1k miles, but then the engine (valvetrain) got considerably louder. By 5k miles, I had at least four people ask me if there was something wrong with my 2008 Dodge Ram because the motor was making so much noise. Instead of staying with my usual 7500 mile intervals, I dumped the PP 5w20 at 6k.

Now with German Castrol 0w30, the engine is MUCH quieter than it ever was with any of the 20wt oils used previously. GC is currently being run with 10k OCI's and a filter change/topoff every 5k.

 

[milwaukee]

Originally Posted By: ekpolk
Perhaps you should consider enjoying the calming effect of having an open mind and thinking on a deeper level.


You first. I'm not the one that thinks its so just because I "think" or "want" something to be happening.

You guys are dealing in subjective feelings not facts. The difference is so small between 5-20 and 5-30 that any difference you can hear between those weights in the same brand is non existant.

Believe what you want because I really don't care but don't pass it off as fact. Lots of people imagine things that don't hurt anyone.

 

[PT1]

I believe that certain oil brands abate noise better than others based on formulation with conventional oils being the best at noise abatement. However, the vehicles I have owned that are speced for 5w20 showed no noticible difference in engine noise reduction when using 5w30 of the same brand. This was tried in a 4cyl Honda CRV and Toyota Rav4 with PP 5w20 & 5w30 in each.

 

[fito]

I was getting what I thought was a piston slap noise in my wifes Acura MDX and it was with 5W30 PP syn. I switched to 5W20 Maxlife semi syn and the engine is running really smooth and the noise is just about gone after about 500 miles on the new oil.

 

[BuickGN]

Originally Posted By: milwaukee
Originally Posted By: ekpolk
Perhaps you should consider enjoying the calming effect of having an open mind and thinking on a deeper level.


You first. I'm not the one that thinks its so just because I "think" or "want" something to be happening.

You guys are dealing in subjective feelings not facts. The difference is so small between 5-20 and 5-30 that any difference you can hear between those weights in the same brand is non existant.

Believe what you want because I really don't care but don't pass it off as fact. Lots of people imagine things that don't hurt anyone.


Have fun in your little world.

 

[milwaukee]

Ok I will. Thanks for your blessing.

It is called the real world not "imaginary I want it to be so....so it must be" world.

Let me guess....you are a thicker is better type of person?