[06MonteSS]

Hi all,

For my new '06 Monte SS with the 5.3L v8 - what are your thoughts on using Mobile-1 synthetic oil vs. regular dino oil?

Will one be better to use than the other in this car/engine?? Does it really matter??

I drive 50% highway, 50% back/normal roads around town - some with stop-n-go for miles, and like to "get on it" when there's room to...

TIA!

[Roy01Intrigue]

Personally I'd use Mobil 1 or any quality synthetic (M1, Amsoil, Royal Purple) starting at the 3rd oil change.

It may cost a little more, but you can go without changing the oil longer (still change the filter though), so it balances out cost wise.

Synthetic has been proven to be better in the long run at cleaning and reducing wear on your engine.

To me, its definately worth it to use synthetic, I would never again use dino oil in any car I own.

[mostholycerebus]

Absolutely synthetic. Change the filter every 3,000 and the oil + filter every 6,000. Run a few changes on dino first. Synthetic is much cleaner, and better for all extreme temperatures.

[Dave96Z34]

Royal Purple = liquid gold I have to drive over to Woodbury and check that v8 out.

[06MonteSS]

Dave 96 z34 said:

...I have to drive over to Woodbury and check that v8 out.

Lemme know when... Gimme a heads up and I can meet'cha somewhere...

:wink:

[Manitcor]

full synthetic is what came in your engine from the dealer, stick with it. If you want to do better than whats in there go to AMSOil or Royal Purple

[f_399]

I just switched back to Royal Purple 10W30

[06MonteSS]

What?? this came factory/dealer-filled with synthetic??? thought only the Vette's did, and maybe the SSR...

how do you know it came with synthetic from the factory/dealer? If it did, I would think that at my last oil change they would have used the synthetic again, but they didn't... it was 6 qts. of their regular bulk oil...

Doesn't say anything about that in the manual... it just says to use a synthetic if you live in an area where temps go below -20F, other than that, regular oil that meets the GM specs... Hmmmm, interesting...

[Roy01Intrigue]

I'm fairly certain that the new Montes don't come factory with synthetic...

Next oil change pick up some M1, Royal Purple, or Amsoil and use that. They are all of fairly equal quailty.

I use Mobil 1 because you can get 15-20 bucks for 5 quarts at walmart depending if its on sale or not. I only run 6k miles per oil change and 3k for the filter, so the differences from the higher cost oil are slim to none. All 3 are excellent choices though.

Also, not sure what it came with, but I'd recommend using 5W-30 up here in CT.

[06MonteSS]

yeah, doubt they came with synthetic as well... and yeah, the owner's manual says to use only 5W-30...

Is Royal Purple better than Mobil-1 ??

[mstrjon32]

I too would go with synthetic for that brand new V8.

[f_399]

from what i have heard

royal purple and amsoil are better than mobil 1

[fordfox]

"You get what you pay for."

People generally fight over whether Royal Purple or Amsoil are better. They're probably the best 2 oils you can get.

Then comes Mobil 1, which isn't saying it's bad. It's pretty good, actually.

After that... I don't know.

Generally, people who use the Royal Purple or Amsoil either want to brag, want to set some distance record with their engine, have extra money lying about, or are racing.

If you have the money for the top 2, then by all means, go for it. But Mobil 1 won't do you wrong.

[06MonteSS]

awesome - thanks for the info!

[74monteman]

i guy i work with had a 98 camaro Z-28 with the LS-1 and he used royal purple and it messed up his engine. Royal purple sometimes mis lables their weights of oil, y do you think nascar quit using it and are using mobil 1! i have a 77 monte with a 305 HO and i had a small oil leak and i used mobil 1 extended performance and it hasend used a drop of oil sence. and it is recommended to use 5W-30 in all new GM and Chrystler engines. i would stick with mobil 1 man. extended performance

[Craigar]

http://www.hotrod.com/techarticles/synthet...eral_motor_oil/ Good article about both. Hey 06MonteSS there is this same discussion over at the other forum too but I'm going to keep my opinions to myself this time.

[HeavyChevy3800]

Mobil 1, use it.

[Lumaro38]

Ehh I got pennziol 20w-50.. it does the trick very well and its not to expensive.. but if you plan on sticking with synthetic ( remember can't go back!), Mobil 1 for sure.

[Black 06 SS]

dont use synthetic. i did the first 6 months i had mine and noticed i was burning a half quart every 3000. took to dealership and they said with the ls4 this will happen. i swithed to reg. mobil and does not burn a drop.

dont use synthetic. i did the first 6 months i had mine and noticed i was burning a half quart every 3000. took to dealership and they said with the ls4 this will happen. i swithed to reg. mobil and does not burn a drop.

[me6894]

doesn't the ls4 say mobil 1 on the oil cap? or is that the ls2s just corvette engines?

and why the hell would you use 20w50??

This post has been edited by me6894: 13 April 2008 - 09:18 AM

[3800_Beast]

me6894, on Apr 13 2008, 09:17 AM, said:

doesn't the ls4 say mobil 1 on the oil cap? or is that the ls2s just corvette engines?

and why the hell would you use 20w50??

idk if the LS4 does, but I would assume it would. The LS2 does. Looked at a GTO recently with the LS2 in it, and it says Mobil 1 on the cap. I use it in my car and it runs great. Change it every 3,000 and your car will last a very long time.

[Mr. Brickyard]

and why the hell would you use 20w50??
[/quote]


ditto

[LarryK]

Geez.....yet another oil discussion about synth vs dino Sorry to see a lot of the same arguments/myths being thrown out in this thread.....

First, I would ALWAYS use synthetic oil, period. I work on a lot of engines, and I can tell the second I open them uop whetgher someone uses synthetic or dino....major obvious. In fact, my recently departed 3100 in my Lumina had 285K on the clock, and I used synthetic all the time. Lower end, valvces, lifters, etc were all perfect.....couldn't say the same about the snapped camshaft though....doh!

OK....some myths:

- You CAN switch back and forth between synth and dino whenever. The "you can't go back" is BS
- NASCAR probably switched to Mobil1 for endorsement reasons. Come on....NASCAR doing something that doesn't mean more money for them? HAHAHA!!! Good one! Just because NASCAR runs anything, is NOT a reason to use it yourself....
- I ran a test in my Lumina where I pulled oil from 3000-12000 miles before I changed the oil (Mobil1). I sent the oil out for testing at Blackstone labs, and there was NO sigificant degradation in the oil or its chemical properties until it started to drop off slightly at 10K miles. If your engine is kept up (ie, isn't full of sludge and crap) you don't need to change the filter that often either. I changed my oil and filter at 10K with no problems.
- Sigh.....the Amsoil/Royal Purple debate......again. They are both MUCH better than dino, but frankly....not much different than any other synthetic. They may have a different additive package, but that's it. If someone has a sales deal, they usually push one or the other.
- You can change to synthetic as soon as you want..... I usually run dino for 3000miles in a new car, and change over right away to synth.
- You won't burn more oil with one oil vs another. *maybe* with a thinner oil, but not a different type
- The high mileage oil that was mentioned....it has an additive that softens and swells seal material, which helps to seal up your engine. Yeah, it works.....but kind of half ass solution if you ask me. If you are leaking oil, fix the seal!

Also, I see no reference for the factory (GM) filling any car other than the Vette with Mobil1.

Bottom line...use synthetic in a viscocity suggested in your owners manual. Changing it every 10,000 miles should be good, unless you are regulalry driving through the Sahara desert

YMMV.....

Larry

[mstrjon32]

32K on my 3900 now, been running Mobil 1 5w-30 and changing it per the OLM, so about every 7,500 miles. Purrs like a kitten, gets great gas mileage, no problems.

[me6894]

Just about every cadillac uses Mobil1 from the factory. I wouldn't go 10k on one oil change or filter, I would say 5

Everything else i would pretty much agree with, especially that synthetic oil, especially on a new engine, would not cause it to burn more oil

This post has been edited by me6894: 16 April 2008 - 05:13 PM

[Mr. Brickyard]

One thing about synthetic, if you have a weak seal or gasket you are more likely to get an oil leak from these than conventional oil. Or if you already have an oil leak the leak will most likely get worse. But as far as the additive package is concerned, synthetic oil is heads and shoulders above conventional oil.

[SSeeya06]

hey guys im new here , not rich,not a performance guru, just a guy who loves his monte. I just made the switch to synthetic yesterday, and was presented with this exact question. Although there is one more option -slx 4718- brand new and designed by GM for our cars- supposed to be the best . At least that is what my dealership told me! It is a little more pricey than the rest, but i figure GM built "the beast" absolutely perfect - I'll spend the extra and let them maintain perfection!
I do have 1 question-Anyone find a supercharger built for the 5.3l dod yet? Any1 care to speculate on hp increase-max?

[famousmonte98]

08 cobalts, and 04-06 goats come with mobile-1 inside

[06MonteSS]

SSeeya06, on Apr 17 2008, 11:02 AM, said:

I do have 1 question-Anyone find a supercharger built for the 5.3l dod yet? Any1 care to speculate on hp increase-max?

http://ls1tech.com/f...ad.php?t=785588

http://www.pfyc.com/pc/WB3007/04UNDER/Cart....3L+LS4+V8.html

http://www.cartuning.ca/

[lb79theone]

M1!

That is a ill engine and turbo!