ChocoTaco369

i actually enjoy the treasure hunt. it's a sense of satisfaction when i get it. FWIW, this is the first time i've ever had trouble finding GC. i've been to 3 different autozones and i've never had a problem. this is the first time one of the autozone's was short.

ChocoTaco369

nice assumption. i check my oil every week. i check it for level and cleanliness. i don't like adding fresh oil to old oil. why? because it completely throws off a reading if you decide to get a UOA. it makes the TBN analysis USELESS since you poured fresh additive in it. i wanted to send this mobil 1 away with my bottle of GC for review: i wanted to see how both performed after 4,500 miles. now i can't because the mobil 1 couldn't make it long enough. the GC had no problem making it to the 4,500 mile mark. it could have gone longer. the mobil 1 barely made 4,000 before it started getting low.

now do you understand the logic behind it?

if you keep adding oil, you'll never get an accurate UOA.

i believe the LOW OIL light comes on when you're 1 quart low. 1 quart low in over 4,000 miles isn't that bad and my oil pressure has been great the whole time. it's just the fact that it DID come on when the GC has gone longer several times with no LOW OIL light that shows mobil 1's greater likelihood to be consumed.

Mr Incredible

I understand what you are saying. I answered you entirely in context. That you don't agree with me does not make me wrong.

What you are saying is not correct. Your generalizations are not correct. Your analogies on not relative. M1, in the general pecking order, is not one of the thinner oils.

If you cling to your ingrained gernalizations, how can anybody take any of your other generalizations seriously? What does any of what you are saying aid the oil conversation in any way other than as an example of what not to believe?

Please, Choco, cast aside for a moment your preconceived notions of what M1 is and actually LOOK at the viscosity numbers of it and the oils around it. It really isn't all that thin. Plus, here's a thought: Consumption is not directly correlative to thinness. Thinness is not directly correlative to consumption. There are engines that don't consume M1. There are thin oils that aren't consumed as a matter of course.

GC is a good oil, but the pedestal it is on is not nearly as tall as your shortsightedness would lead you to believe. There are other oils that produce excellent numbers and don't have consumption problems. Pennzoil Platinum comes to mind, and it's about 10k times easier to acquire.

Get a grip, Man!

ChocoTaco369

again, it DOES NOT matter that there are other oils out there that are thinner than mobil 1. that is NOT what is in question. mobil 1 is STILL thin. stop focusing on other oils. this is about mobil 1 and mobil 1 only. you're comparing it to other brands that aren't even in question. mobil 1 is thin oil. proof is its rate of consumption. i don't care if you don't think it's thin. the LS1 thinks it's thin.

because, well, mobil 1 is thin.

all engines consume oil to an extent. the LS1 is notorious for oil consumption. on that note, LS1's that use mobil 1 tend to consume more oil than others. when people switch away from mobil 1, the motor tends to consume more. my proof is that i switched from castrol to mobil 1 and now i consume more oil. what do you know?

stop looking at your chart. start looking at reality. i have real results. you have a jpg file.

it's not that GC is this great oil. it's that mobil 1 is the world's most overrated oil. there's nothing special about it at all.

Mr Incredible

Well, Choco, I'm afraid there is nothing left to say. If it means nothing to you that others don't have consumption with M1, so be it. If it matters not that there are (according to the chart) at least 56 other 30wt oils that are thinner than M1, vs 15 that are thicker, oh well. If you can't grasp the idea that what you've figured out may not be the reason for what you saw, ok.

You have gathered around you all your prejudices and opinions and will entertain no other ideas. Best of luck to you. I won't argue any more about it since you are obviously here for the argument and not the exchange of information.

My time is better spent elsewhere. Enjoy the rest of your weekend.

Cheers.

ChocoTaco369

again:

1.) mobil 1 is thin. regardless if other oils are thinner or not, mobil 1 is still thin in all its varieties.

2.) most everyone i've ever talked to running a mobil 1 5W-30 or 10W-30 has consumption issues. i've gotten many people to switch over from mobil 1 to GC and their consumption issues stopped altogether or decreased dramatically. i switched from GC to a 40 weight mobil 1 - a much better oil than a 30 weight - and i still consumed more.

3.) i didn't come here for the argument. you did. you keep waving a useless chart in front of my face when i have real world effects in my corner. i don't care about a useless number, i care about how the oil actually performs. mobil 1 in EVERY weight is outperformed by other oils out there. it's mediocre and very overpriced for what you get.

i wish you would understand that i'm not arguing numbers. numbers are completely useless in this situation. this is all about results. you fail to acknowledge my real world experience because you have a chart with numbers on it. so be it.

Mr Incredible

But before we go, please let me ask if I have your position correct, Choco, for the record. I don't want you to think that I wasn't paying attention to anything but that silly old chart...

You are saying M1 oils (all) are thin. They prove themselves thin by the simple fact that you, and others you have met in some way, have consumption problems?

And, that, regardless of M1's relative position on any old stinkin' chart, they are thin, Thin, THIN....regardless of any viscosity they may have or their position on the oil viscosity heirarchy?

And, finally, that the fact that your car (and others) consume M1, that there can be no other conclusion but that M1 is thin...regardless of its actual viscosity numbers?

Does that just about get it?

ChocoTaco369

yes, mobil 1 oils are thin. compared to my GC, which i consider a thick, robust oil for a 0W-30, every mobil 1 oil is thin. a quart of mobil 1 weighs half that of a quart of GC according to what my hand tells me. it's amazing how much lighter of an oil it is.

yes. real world performance is much more applicable than something a chart says. mobil 1 shears down quite easily when compared to GC. it thins out a lot once it's in use. i can tell just by the way my engine progressively ticked louder when the oil started to get older. the motor was definitely quieter right after my oil change than it is now, even after i topped it off.

yup. the fact that LS1's drink mobil 1 much faster than most other oils show that mobil 1 lacks the quality it once has. ever since exxon took over mobil, it's been a downhill slope for the once great oil.

why do i say that mobil 1 is a thin oil? because compared to conventional oils - the oil i base my opinions off of - it is pretty darn thin. it's very light compared to other synthetics like GC. it shears down a lot more easily, thinning it out even more and making it more easy to be devoured by my engine. the real world has showed me mobil 1 is just an inferior oil. it's not the worst out there for sure, but it's got a lot of catching up to do before it reaches GC standards.

FWIW, GC is on sale this week at autozone for $4.49. i'm thinking about trying to return my mobil 1 at another autozone and hoping they have GC in stock.

RickyMartinZ28

iTrader: (5)

I've been using 10w-40 Mobil 1 in my built LT1 since it was new, 80k miles now. Never burned an ounce. Zero Consumption. All components inside and out (out meaning valvetrain) look just like new after all these miles. The Pure Synthetic is great, before they came out with the 15k oil i usually went about 8k on 3k oil, and now with the 15k oil i only go about 12k on the change and everything always looks satisfactory... so I Vote M1 Synthetic 10w-40... Sometimes you can't find 40weight so I mix once in awhile...

Mr Incredible

Yep, that's what I thought you were saying.

"My opinion carries greater weight than actual numbers."

Ok. We're done here.

Mr Incredible

But, wait...there's more.

Castrol lists density of 0w-30 Euro formula as .847 kg/litre. UK & German tech data sheets (TDS) list it as .838 kg/litre.

M1 lists 5w-30 on their TDS at .8 kg/litre.

That's a difference of only 5.5% at most, 4.4% at least. A few ounces. 7.05 lb/gallon vs 7.43 lb/gallon. That's hardly, "...mobil 1 weighs half that of a quart of GC..."

But it's only an unimportant number, huh?

ChocoTaco369

sigh. no, real world performance carries greater weight than actual numbers. you fail to realize this. my opinion is formed around experience.

ChocoTaco369

ask patman. patman considers GC 0W-30 a pretty thick oil for what it is, especially when compared to mobil 1. he also says that when he puts it in 4 cylinders, they tend to feel a bit more sluggish because it's a heavy oil. GC is very, very heavy. if i can, i'll weigh a full quart of GC 0W-30 vs. GC 5W-40...if i can find a scale somewhere. the 30 weight castrol is quite a bit heavier than the 40 weight mobil.

Mr Incredible

I got a quart of M1 5w-30 on the way home. It's not much of a hardship since I can put it in one of the mowers. I weighed it on my postal scales. I weighed four of the bottles of GC out of my closest case.

Three of the GC bottles weighed 1lb 14.7oz. One weighed 1lb 14.9oz. The M1 bottle weighed 1lb 14.5oz.

The weight in grams was GC/871g, M1/864g. I don't consider 7g or .2 oz to be considerable, nor even noteworthy.

Looking at the Mobil website, I see the density of M1 0w-40 is .855 kg/litre. M1 5w-40 TD is .854. Again, GC is .838 and M1 5w-30 is .8.

I think the mistake is equating "heavier" weight oil as being literally so much heavier. Yes, perhaps it is, but on a much lesser scale than you are imagining. Consequently, the opposite is also being perpetrated by equating a "lighter" viscosity oil as being actually light, thin, or otherwise etheral. Such is not the case, and much of your opinion (which you state with the confidence of it being dead fact) is evidently based upon a very mis-calibrated scale. By stating the simple fact that M1 is known to be an oil that has consumption, it does not logically follow that it must, therefore, be a thin oil. Since there are many thinner oils that are not consumed in vehicles, do they then logically not exist?

Again, though GC may be thicker than M1, that doesn't make M1 thin. GC is almost the most viscous 30wt there is, and M1 5w-30 is greater than mid-pack in viscosity. But if it were only viscosity (thickness) that was important, there are many more viscous oils, and I don't hear anyone discussing them with the reverence they save for GC.

Grimes

iTrader: (3)

FWIW, I burned through GC way faster than I did with M1 after giving it a try (over 1qt in 3000 miles vs less than 1qt in 5000). Back to M1 it was

gtarist

iTrader: (1)

Hey, let me jump into this pissin' match!

I'm switching to an M1 product, can't find GC any more around here. I drive less than 3000 miles per year, don't race, store in winter, change in spring (go ahead, jump on me about that), add if I need to. So I figure to have a good long life regardless.

That said, Choco - I've got a quart and a half of GC left on my workbench. I'll send it to you if you pay for shipping. If anyone in this world should have it, you should. Lemme know.

KrazyDan

I used M1 up until my last oil change and always had to add oil. This past oil change I switched to German Castrol. After 4k miles, I havent had to add anything. The problem now is its time for an oil change and I am only able to find 4 qts. and Im not about to pay $50 for 6 qts online.

KrazyDan

If choco doesnt take that quart and a half....Ill tak it off your hands.

ChocoTaco369

i just scored 18 quarts of GC on sale for $4.49. i'm good for 15,000 miles. autozone has them on sale right now.

no thanks for the extra quart and a half, i'll pass, but thanks