Mobile 1 synthetic oil???
Thread Starter
Instructor
Joined: Jun 2002
Posts: 155
Likes: 0
From: Sanford FL
Mobile 1 synthetic oil???
Does anyone recommend using this? I have heard that is better than conventional oil and worth the price. By the way, finished replacing my u-joints, was quite a day but worth it. More for the piece of mind that they are good; as the car only has 40,000 miles on it. Didn't have any problem with the drive shaft, but had a heck of a time trying to get the old ones out of the 2 half shafts. Ended up calliing around to have someone remove them. 3 places wanted over $100 for removing 4 u-joints!!!!!!! Finally found a place who did all 4 for $15 bucks. She is running alot better now. I ran a couple of bottles of carb cleaner through her. I think it had alot of varnish build up from sitting so long before I bought her. Will post pics as soon as I get an online web host. Am really enjoying this forum. Learning alot just reading your posts. Thanx :flag
Pro
Joined: Jan 2000
Posts: 569
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From: SLC, UT USA
Re: Mobile 1 synthetic oil??? (VetteRN)
Mobil 1 used to be an excellent product, but they had to down grade their product to keep competitive in the market.
I choose to go with Amsoil, one of the two or three best products in the syn oil market.
I choose to go with Amsoil, one of the two or three best products in the syn oil market.
Melting Slicks
Joined: Aug 2001
Posts: 2,753
Likes: 1
From: Fishkill NY
Re: Mobile 1 synthetic oil??? (VetteRN)
Just a word of caution here.. If you change over to the synthetic, remember that the chances are high that you will develop an oil leak. All the C3’s were not designed to use the synthetic oils of today. If you try it and develop an oil leak, you can just switch back to the dyno oil and the leak will stop. :yesnod:
Safety Car
Joined: Jan 2000
Posts: 4,143
Likes: 0
Re: Mobile 1 synthetic oil??? (SLICKMAN)
Just a word of caution here.. If you change over to the synthetic, remember that the chances are high that you will develop an oil leak. All the C3’s were not designed to use the synthetic oils of today. If you try it and develop an oil leak, you can just switch back to the dyno oil and the leak will stop. :yesnod:
- and for this reason I'm using Mobil Heavy Duty conventional oil .....30wt. in the '68 ! :seeya
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Re: Mobile 1 synthetic oil??? (verskel)
Running Mobil ! in my motor since it was broken in. No problems. I do have a very small leak but not to bad. My trans leaks more out of the front of the counter shaft more than the engine.
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Le Mans Master
Joined: Sep 2000
Posts: 5,635
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From: Orlando Floriduh
Re: Mobile 1 synthetic oil??? (Tom73)
Now I'm not saying that synthetic oil was the cause... but the ONLY oil related problem I have ever had was a stuck up (galled) lifter in a 92 corvette that had only been serviced with Modil I. I'll stick to valvoline dino oil thanks.
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
Re: Mobile 1 synthetic oil??? (SLICKMAN)
Just a word of caution here.. If you change over to the synthetic, remember that the chances are high that you will develop an oil leak. All the C3’s were not designed to use the synthetic oils of today. If you try it and develop an oil leak, you can just switch back to the dyno oil and the leak will stop. :yesnod:
i have used nothing but Mobile 1 for years in my later model cars...
most recently in my 3000GT (which BTW is still for sale) with great results...
so naturaly when i bought my C3 two or three months ago i did my 1st oil change with it...
the car had zero oil leaks until i changed to the synthetic oil and almost imediately developed oil leaks...
when advised to change back to stop the leaks i was skeptical to say the least but i did and the leaks stopped...almost as quickly as they began...
they didnt completely stop tho...i still get a very small drip from my rear main...
my next personal choice is Castrol GTX but honestly i think that most of todays oils are all good and probably most are the same...
i strongly feel however that there is a HUGE difference in oil filters...
if you want to see a really great study on oil filters go here http://www.scuderiaciriani.com/rx7/oil_filter_study/
you may be very suprised at what you might learn about your favorite!
i will use NOTHING but Mobil 1 filters :)
BTW...i do realize the "can of worms" that has been opened here..LOL
it the old "whats the best oil and/or oil filter" thread again...sorry :)
SG
[Modified by SIGNGUY, 8:18 PM 6/27/2002]
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Posts: n/a
Re: Mobile 1 synthetic oil??? (SIGNGUY)
Synthetic vs conventional oils has a lot to do with your engine. By this I mean how have you changed it from it's original. If it is rebuilt, modified and only slightly resembles it's true self than I would bet synthetic is fine. You just have to stay on top of your changes. Synthetic has a specific life and the falls apart. Conventional oils have more forgiveness. I also wonder how much detergent is in the new synthetic oil. Old engines do not do well at all on oils with good detergents in them...they clean so well you leak like a sive.
Will have to look into this when I get back to work. As an oil distributor we deal in many brands synthetic and conventional, straight weights and multi grade. Thanks for a great "homework" topic to learn from. :blueangel:
I did visit the filter site and there is a lot there to read...my first question is from all the different filters he received how many are made by a wide range of manufactuers. Generics are seldom made by a generic company.
Will have to look into this when I get back to work. As an oil distributor we deal in many brands synthetic and conventional, straight weights and multi grade. Thanks for a great "homework" topic to learn from. :blueangel:
I did visit the filter site and there is a lot there to read...my first question is from all the different filters he received how many are made by a wide range of manufactuers. Generics are seldom made by a generic company.
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SPARTAN
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Re: Mobile 1 synthetic oil??? (VetteRN)
Mobil1 goes in ALL my cars. Put it in the Vette after I broke in the engine using dino-oil. It leaks here and there, but small block Chevy's are SUPPOSED to leak! :D
In the Vette, the oil gets changed once per year.
In my other cars it gets changed every 10,000 miles. I have 125k on my '97 Grand Prix and it's still running flawlessly. Nothing else will go in my engines (except the mower...although...hmmm..... :) and did someone say fully synthetic RACING oil???)
In the Vette, the oil gets changed once per year.
In my other cars it gets changed every 10,000 miles. I have 125k on my '97 Grand Prix and it's still running flawlessly. Nothing else will go in my engines (except the mower...although...hmmm..... :) and did someone say fully synthetic RACING oil???)
Thread Starter
Instructor
Joined: Jun 2002
Posts: 155
Likes: 0
From: Sanford FL
Re: Mobile 1 synthetic oil??? (ddecart)
OK, thanx for the inputs............... I think I will just stick with conventional for now, maybe later will try synthetic and see what happens.
Thanx again :flag
Thanx again :flag
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: Mobile 1 synthetic oil??? (SLICKMAN)
Just a word of caution here.. If you change over to the synthetic, remember that the chances are high that you will develop an oil leak. All the C3’s were not designed to use the synthetic oils of today. If you try it and develop an oil leak, you can just switch back to the dyno oil and the leak will stop. :yesnod:
Marck
Melting Slicks
Joined: Aug 2001
Posts: 2,753
Likes: 1
From: Fishkill NY
Re: Mobile 1 synthetic oil??? (Twinnie)
The last time I did this (which I'll never do again) was on a 69 383 Road Runner. It was tight with no leaks.. A few days later it started leaking from the intake front area and the rear main seal. :mad I switched back to dyno and it all stopped with the exception of a VERY small leak on the intake front gasket. This could very well be because of the cork matl they used back in the day. I'm not sure when the mfg's started changing over to somthing other than cork but, if anyone has a motor that's orginal (C3's and prior I would guess based on what I know), stick with the dyno oil.
If they are re-building than you can switch because you will be using all the gasket matl of today and tight spec's regarding everything else (unless your going with total orginal spec's and your anle like me and use cork).
Anyway, with what happen to me and the posts I have seen on the forum, my way of thinking is pritty wide spread.
[Modified by SLICKMAN, 9:19 AM 6/28/2002]
If they are re-building than you can switch because you will be using all the gasket matl of today and tight spec's regarding everything else (unless your going with total orginal spec's and your anle like me and use cork).
Anyway, with what happen to me and the posts I have seen on the forum, my way of thinking is pritty wide spread.
[Modified by SLICKMAN, 9:19 AM 6/28/2002]
