It was time for an oil change in my car, so I went back to conventional Valvoline 5w 30... sale at Advance on it, so I picked up serveral quarts. I had been running 10w 30 M1 HM which is the only weight it comes in. Not saying it's a bad oil, it isn't, and it is loaded with additives, by I noticed an immmediate difference just by going back to dino 5w 30 that my car was more responsive. I find it a bit odd considering I had a full syn in there, so I figured I would have better performance from the M1...guess I could have been wrong...The stuff must be thick.
I gave M1 HM a try...never again
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Originally Posted By: mvg72
I had been running 10w 30 M1 HM which is the only weight it comes in.
Yes it has a HTHS viscosity of 3.6 cP which is borderline 30 to 40 weight. That would be why it decreased responsiveness compared to a dino 5w30 on the thin side of 30 weight.
I had been running 10w 30 M1 HM which is the only weight it comes in.
Yes it has a HTHS viscosity of 3.6 cP which is borderline 30 to 40 weight. That would be why it decreased responsiveness compared to a dino 5w30 on the thin side of 30 weight.
Well, I've heard a lot about the "placebo effect", but I really made sure not to let that happen and really observe the difference. I am still suprised that my car runs better on dino 5/30. Truth be know, I didn't really "need" the M1 HM, but wanted to give it a shot... I Have 140k on my car with a couple of very minor oil leaks. I'm still not completely sold on HM oil, but if I do again, it will be Val Maxlife blend. I'm thinking I can likely get another 140k easily on this 3.1L GM V6 regardless of oil I use, but I'm one who prefers to maintiane an engines capabilitie in terms of how it runs, and it seemd the M1 HM bogged it down, a little bit.
Depends. I've switched from dino to regular M1 and I immediately noticed my car more willing to smoothly get into the higher rpm band. For instance, I am so use to the transmission on my Saturn I can tell 3,000 rpm on the money from the engine noise. With Mobil 1, I found myself shifting more around 3,300rpm to 3,500 rpm. I had to recondition myself to learn the engine noise at 3,000rpm with the Mobil 1.
It is possible the Mobil 1 HM is thicker, I have no idea. If you feel your engine feels better with the valvoline, stick with it.
My oils of choice for Synthetic - Mobil 1, Conventional/Synthetic Blends - Valvoline. However, I am seriously considering Valvoline Synpower synthetic for my next oil change
It is possible the Mobil 1 HM is thicker, I have no idea. If you feel your engine feels better with the valvoline, stick with it.
My oils of choice for Synthetic - Mobil 1, Conventional/Synthetic Blends - Valvoline. However, I am seriously considering Valvoline Synpower synthetic for my next oil change
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Originally Posted By: GMBoy
We ought to have a "butt-dyno" forum here for all the unscientific posting that's been going on here lately with noisy engines on certain oils, engine revs better on certain oils, etc.
Yeah, it's getting outta hand. I thought newbies had to post intelligently 10 times before they were granted full rights.
What happened?
We ought to have a "butt-dyno" forum here for all the unscientific posting that's been going on here lately with noisy engines on certain oils, engine revs better on certain oils, etc.
Yeah, it's getting outta hand. I thought newbies had to post intelligently 10 times before they were granted full rights.
What happened?
Originally Posted By: mvg72
I'm not claiming louder or quieter....or better revs on dino...
I am claiming that the engine response is faster, picks up faster on 5w 30 Valvoline vs the M1 HM
Any thinner oil will do that.
I'm not claiming louder or quieter....or better revs on dino...
I am claiming that the engine response is faster, picks up faster on 5w 30 Valvoline vs the M1 HM
Any thinner oil will do that.
Originally Posted By: GMBoy
We ought to have a "butt-dyno" forum here for all the unscientific posting that's been going on here lately with noisy engines on certain oils, engine revs better on certain oils, etc.
This is an open forum. Leave the scientific data to UOAs. Whose to say some oils don't give your engine a different feel? I stated to stick whatever he feels best. I don't believe you have to fax a doctoral degree to the administrator before registration so excuse me. Don't make a mountain out of a mole hill.
We ought to have a "butt-dyno" forum here for all the unscientific posting that's been going on here lately with noisy engines on certain oils, engine revs better on certain oils, etc.
This is an open forum. Leave the scientific data to UOAs. Whose to say some oils don't give your engine a different feel? I stated to stick whatever he feels best. I don't believe you have to fax a doctoral degree to the administrator before registration so excuse me. Don't make a mountain out of a mole hill.
Ok guys...look...heres another bit of info...before I ran this M1 HM, I called the Mobil Tech Line and asked the dork on the phone if I'm safe using this in my leaking engine as it is full synthetic... His response was that it will flow 7-8 times faster than conventional because it is full syn, BUT, if it is flowing so much faster, then whey does the engine seem more sluggish on it vs the dino? I think it seems that these tech lines are useless.
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Originally Posted By: toocrazy2yoo
Originally Posted By: GMBoy
We ought to have a "butt-dyno" forum here for all the unscientific posting that's been going on here lately with noisy engines on certain oils, engine revs better on certain oils, etc.
Yeah, it's getting outta hand. I thought newbies had to post intelligently 10 times before they were granted full rights.
What happened?
(Off-Topic)
I am (1) of a few noisy engine complainers. I sure don't feel I belong on some butt-dino forum here.
If any of you have individual poster complaints, take it up with the administrators here. No sense bashing other members on open topics here. Show some respect please. Better yet, when you come-upon poster names you don't care to read, scroll by them. As a last resort, open up the offending poster's profile - then place that poster on your "Ignore This User" option here at BITOG.
Originally Posted By: GMBoy
We ought to have a "butt-dyno" forum here for all the unscientific posting that's been going on here lately with noisy engines on certain oils, engine revs better on certain oils, etc.
Yeah, it's getting outta hand. I thought newbies had to post intelligently 10 times before they were granted full rights.
What happened?
(Off-Topic)
I am (1) of a few noisy engine complainers. I sure don't feel I belong on some butt-dino forum here.
If any of you have individual poster complaints, take it up with the administrators here. No sense bashing other members on open topics here. Show some respect please. Better yet, when you come-upon poster names you don't care to read, scroll by them. As a last resort, open up the offending poster's profile - then place that poster on your "Ignore This User" option here at BITOG.
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I personally like hearing about people's impressions of their engine's behavior with different oils. It is part of the picture for me to learn about oils. Buster and others have shown that UOA's have limitations. We can't rely on only one type of information. We need all the info. we can get, including impressions, IMO. Of course it is up to the individual reader how much credence to give each post/poster.
So having said that, for me I have seen big differences with some engines and some oils. Other cars I have seen zero difference. Recently I changed to a new oil on one car and saw zero difference for the first 800 miles or so. Then I took a long trip and now with about 1100 miles on the oil there is a very noticable difference. It is more fun to drive and it feels like the car likes this particular oil more than the last one. It may make no difference at all in terms of wear but the revs are different and the noise is different, there is no doubt. And that should not be discounted just because it is subjective and not quantitative IMO.
So having said that, for me I have seen big differences with some engines and some oils. Other cars I have seen zero difference. Recently I changed to a new oil on one car and saw zero difference for the first 800 miles or so. Then I took a long trip and now with about 1100 miles on the oil there is a very noticable difference. It is more fun to drive and it feels like the car likes this particular oil more than the last one. It may make no difference at all in terms of wear but the revs are different and the noise is different, there is no doubt. And that should not be discounted just because it is subjective and not quantitative IMO.
Also, don't forget fresh oil seals and works better.
when i run M1 10w30 HM in my GM's in the summer it won't even
roll over, i have to use the block heater first..bad M1!!!!
roll over, i have to use the block heater first..bad M1!!!!
Yeah, it's getting outta hand. I thought newbies had to post intelligently 10 times before they were granted full rights.
What happened?
Oh, puh-lease. Unworthy, we are.
What happened?
Oh, puh-lease. Unworthy, we are.
No one can really tell if someone is louder, just like they can't tell if something is hotter, saltier, brighter or smellier.
Originally Posted By: mvg72
. . . I had been running 10w 30 M1 HM which is the only weight it comes in. . . .
For the record, Mobil-1 HM also comes in 10w-40.
. . . I had been running 10w 30 M1 HM which is the only weight it comes in. . . .
For the record, Mobil-1 HM also comes in 10w-40.
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