engine oil

[LOUVETTE]

I havn't seen much written in here regarding engine oil.
I use pensoil 5w - 30 and add slick 50 ...use ac delco oil filter.
This is on a stock 1989 with l98 engine and 82 k miles.
Dont know what the previous owner used. The oil and slick 50 come together in a kit here. Was wondering how others manage their oil system.

 

[Vettelt193]

Mobil 1 all the way.... I just started using Purolator Pure One Filters, they have been rated top notch and aren't very pricey.

I have heard some very bad things about slick 50 so I won't go near the stuff.

 

[Edmond]

Engine oil is one of the most discussed topics here. Everyone has their oil preferences for oil and filter. I personally go with Mobil 1 synthetic 10W-30 and a Mobil 1 high efficiency filter. Haven't run into any problems. I especially like the quality in the build of the Mobil 1 filter much better than Fram, which was what I used before.

 

[jeepie]

I use Mobil 1 synthetic and a Mobil 1 filter, they are rather expensive, but with the number of miles I put on a year I usually only have to change it once a year.

 

[LOUVETTE]

reply

what viscosity of mobile 1 synthetic do you use.....10w 30 or 5w 30

 

[LOUVETTE]

vettelt93

do u think i otta get that slick 50 out of there.............what kind of stories did u hear...

 

[Vettelt193]

I have heard very bad things about slick 50. I have also heard some not so bad things.... Slick 50 (quakerstate) was sued over false advertising, they settled... Also, the maker of teflon (3M?) has said teflon is not good as an engine oil additive. I have heard horror stories about slick 50 making things worse, blowing engines, gumming up etc.

The not so bad stuff basically says it does nothing to help and is a waste of money.

If I were you, I would stick with a high quality synthetic like Mobil 1 and forget about slick 50. My '93 vette had nothing but Mobil 1 in it, and even after 100k miles (and a number of times waiting well over 7000 miles for an oil change, because i was in college and it wasn't very easy) , the inside of the engine looked like the day it left the factory. After seeing that, and comparing it to non-mobil 1 users, I was completely convinced it is the only way to go.

BTW, the Mobil 1 filter is excellent, but the Purolator Pure One has been ranked a bit higher, and is generally cheaper.

 

[LOUVETTE]

reply

now im really worried that i have that stuff in there......guess i better get it out......the sooner the better...........hope it didnt do any damage.....good thing is it hasnt been in there long so if i change the oil maybe it didnt hurt anything....

 

[Vettelt193]

I wouldn't be overly worried... Just change the oil when you have a chance... It is in millions of cars, and there aren't nightmares like this every day or slick 50 would be sued so bad they wouldn't be around anymore, so don't panic....

 

[GhostOfFreedom]

what does everyone think about Mobil 1® With SuperSyn™ Formula 0W-30 Enhanced Fuel Economy Formula wouldthis be good ina 94 vette or should i just put 5w-30 in??? i live in Albuquereque,nm so it never gets that cold here but would it hurt to use 0w-30 thanx.

 

[Eagle85C4]

One of the things I have been told is Slick 50 has teflon in it, very small chunks..that will over time endeavor to clog the filter as well as any minute place they can find. Supposedly they say that the heat in the cylinder walls was supposed to allow the teflon to coat the parts thereby reducing friction, wear and oil usage. But I do not like the thought of anything clogging parts of the oil system. There was a thread in here somewhere where our very well versed prophet and High Priest Bro-Ken spelled it out quite nicely what the general consensus of opinion was relating to the infusion of additives in our Corvettes. Since I have been very careful what is put in my car. Ken knows best....

 

[Vettelt193]

what does everyone think about Mobil 1® With SuperSyn™ Formula 0W-30 Enhanced Fuel Economy Formula wouldthis be good ina 94 vette or should i just put 5w-30 in??? i live in Albuquereque,nm so it never gets that cold here but would it hurt to use 0w-30 thanx.

I have used 0W-30 before... you can use it if you want... I dont think it makes that much of a difference.... the sypersyn technology will be in all the mobil 1's (it already is actually, basically they are just selling the old stuff off the shelf)

 

[GhostOfFreedom]

thank you when you change your oil do u fill the oil filter with oil and then put it on or do you just put in on with out oil which is the right way or does it matter thanx again

 

[Vettelt193]

I fill mine, at least 3/4 of the way, since it hangs down (instead of sideways or upside down)... it helps the engine get oil pressure faster that way

 

[Corvette-Pilot]

I too have heard bad things about Slick50. I think it is made by Dupont and they don't recommend it for use in engines.

From what I have read over time, as soon as it goes thru (trys to) the oil filter it will be filtered out. Like an earlier post said it is a solid material so the filter is just doing what it was supposed to do.

Now figure if it filter out the stuff you just paid 20 bucks for you now have at least a partially clogged new filter So if it is blocked then all your oil will go thru the bypass inside the filter thus rendering it useless. I am not positive this is how it will all go down, just what I heard/read ?

One other thing I have heard from guys that rebuild engines is this stuff tends to accumulate all over the place. Kinda looks like sludge

I also don't think you should worry about it. Just happened once so the next oil change will clean it out. No harm done.

JMO

 

[vettepilot]

I use the 10W-30 wt Mobil 1, the owners manual says either the 5W-30 or 10W-30 is OK. I like the 10W-30 because the numbers are closer together, meaning less additives required to make the viscosity right.
Thanks to the digital oil press and temp readouts on the DIC, I could also see a minor increase in oil pressure at an idle as the temp got up into the 200+ area on the engine oil temp using the 10W-30 vs the 5W-30. Weight didn't seem to affect the way the temp rose, but did affect the way the pressure held at the upper end of the temps seen.
I had been using the AC PF44 filter, but recently changed to the Mobil 1 filter in my other car, and it seems quieter at initial start-up, will probably go to Mobil 1 in the Vette next change.
I stay away from those additives, they increase the operating cost, and I really don't think they increase the performance, or longevity of the engine parts. If you are already using a good grade of oil, GM Spec. or API SJ or better, then that's providing the protection needed. BTW, anything that adds suspended particles or claims it adheres to the engine parts like PFT (Teflon)... think about it, you are changing the clearances in the bearing areas, and the last thing you want to do to the cylinder walls is coat or glaze them.
Getting the oil hot from an extended drive, and changing the oil and filter at the recommended intervals does more for extending the engine life and reducing operating costs than anything else on the market. And isn't that what we all want in the end, a nice ride at a reasonable cost.
Enjoy your Vette, and have a nice day... I'm heading out the door on this nice sunny and WARM day for a drive in my Z right now.
vettepilot

 

[Full Bull]

Ain't so slick

http://skepdic.com/comments/slickcom.html


check out this website for comments regarding the efficacy of Slick 50 and it's look alikes....

 

[Springer's LT4]

I run 10w-30 due to the warmer temps here in FL. I prefer Royal Purple motor oil if I can find it, if not Amsoil and if thats not around I'll use Mobil-1.

For filters K&N is my primary choice with Mobil-1 as my alternitive.

 

[Ken]

You mention using 10w/30 because you live in southern Florida; I live in southern California and have often wondered about that.

My builder recommended using 10w/30 for my engine, yet all the time I see people using 5w/30 in their modified engines. Granted I spend a lot of time reading drag racing stuff, where the runs are tough on an engine but short in duration, and those guys are interested in the fact there is less resistance to the lighter-weight oils so their engines can perform at their absolute peak efficiency.

I understand the reasoning behind the numbers and how the oil has a different consistency at different temperatures (viscosity and pour point--I worked in a refinery for twenty years ), my question has more to do with street and race applications--is 5w/30 acceptable for such an application? :confused

_ken

 

[Eagle85C4]

I understand the reasoning behind the numbers and how the oil has a different consistency at different temperatures (viscosity and pour point--I worked in a refinery for twenty years ), _ken

Ken... then just what is the difference between the two....5w-30 and 10w-30? Is it the same if you up it to 40 weight? And what would you think would be best suited up here in Ohio? I have always favored 40 weight from the days of the old air cooled Porsche that needed the thicker oil...
Thankx man...:cool