C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

What oil do you use?

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Old May 14, 2012 | 02:51 PM
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Default What oil do you use?

In the past I've used Castrol Synthetic 5-50Wt oil without any issues. It gave me better oil pressure readings at operating temps then Mobile 1 and less engine noise. I had been recommended this oil from Castrol for the Vette. I have been running this in all my cars for over 15 years without oil issues (except HHR Turbo). That said, I know it is not the recommended Wt rating for our cars.

What oil do you use and comments on the Castrol Syntec and Edge products and 5-50Wt are requested.
Old May 14, 2012 | 04:47 PM
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Based off the other threads, just any oil you can buy you like. It makes no difference and its usually a personal as many here will say.
How many engines failed due to oil, ?
if your engine is a rebuild, ask your builder. If it is factory, use weight recommended meeting specs in users manual.
Old May 14, 2012 | 05:28 PM
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This has never been discussed 1000 times
Old May 14, 2012 | 05:53 PM
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Clean stuff....
Old May 14, 2012 | 11:20 PM
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OH Boy! An oil thread!

We havent had one of these around for a long while.

Well, lets see. Where should I begin?
Old May 15, 2012 | 12:27 AM
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Really? So when will a REAL answer be posted? Sorry, new here and haven't had time yet to read all of your posts and learn from all your years of experience.. Try educating me on 5W-50w oil... So far, I haven't seen one of you respond to the original question... or was that going to be too taxing on your attention span? So which thread had that answer?
Old May 15, 2012 | 12:46 AM
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It's really a matter of preference... I run mobile 1 15w50 on all my cars ..including the vette....Never had an issue.... So I can't see any issue with 5w50..I would monitor oil temp and pressure if you have concerns... But I believe you would be Ok..
Old May 15, 2012 | 12:53 AM
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Originally Posted by Speedjester
It's really a matter of preference... I run mobile 1 15w50 on all my cars ..including the vette....Never had an issue.... So I can't see any issue with 5w50..I would monitor oil temp and pressure if you have concerns... But I believe you would be Ok..
Thanks
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Old May 15, 2012 | 12:58 AM
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Originally Posted by hotrodbob01
Really? So when will a REAL answer be posted? So far, I haven't seen one of you respond to the original question... or was that going to be too taxing on your attention span?
I like this guy. He fits in well.....
Old May 15, 2012 | 09:00 AM
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Which oil is never a problem, new, used, heavy, light, cooking, - I use extra virgin olive oil. Just because I can.
Old May 15, 2012 | 09:39 AM
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I'm running Syntec-Edge 10W/40 with a quart of Lucas. I've been using Lucas for years and swear by it.
Old May 15, 2012 | 09:57 AM
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Originally Posted by 96GS#007
This has never been discussed 1000 times
As long as he uses the Purolator filter any oil will do right.
Old May 15, 2012 | 10:13 AM
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Originally Posted by JrRifleCoach
I like this guy. He fits in well.....
he bites back, glad to have him aboard
Old May 15, 2012 | 10:26 AM
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A 50 weight oil is WAAAYY too thick for these engines. The bearing clearances ate tighter and require a 30 weight oil. Using a 50 weight will increase friction and heat and too much operating pressure. I dont run anything more than 30 in my race car, anything street driven shouldn't need more either.
Old May 15, 2012 | 10:31 AM
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With roller cams I use Mobil 1. The IRL engine that won Phoenix some time ago driven by Pete Hamilton & built by friend Mickey Nickos had Mobil 1 15-50 in it. (Olds engine)

Flat tappet cars/bikes/impliments get Rotella T non synthetic. It still has some zinc in it.
Old May 15, 2012 | 12:05 PM
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I switched from Mobil 1 to AMS oil, Signature series last fall (0W30) and using there EA Filter for upto 25,000 mile interval oil change. I will probably pull a oil sample at about 12,000 miles to see what it is doing. I also changed the transmission and differential over to AMS oil synthetic at the same time. this is on a '93 LT1.
Old May 15, 2012 | 12:53 PM
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Changing whatever it is fairly often especially if you don't drive that often to get the condensation and resulting acids out is the biggest issue. For me if over 6 months old out it goes along with all the things chewing on bearings. Clean fresh oil wins everytime. All this 25k oil is interesting and possibly useful if the engine is warm most of the time above the boling point of water if not get it out of there. Personally I use Castrol GTX 20-50 dino oil and a quality filter every 6 months it's 20 bucks and 30 minutes seems like a no brainer. There are a million threads on any forum you might want to chose, pick the one you agree with. I pick oil weights by the local temperatures and minimum oil pressure and miles on the engine few will agree but personally could care less.
Dave

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Old May 15, 2012 | 01:11 PM
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Originally Posted by Thorr
Which oil is never a problem, new, used, heavy, light, cooking, - I use extra virgin olive oil. Just because I can.
I tried that, but she slapped me
Old May 15, 2012 | 01:15 PM
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Old May 15, 2012 | 01:23 PM
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Originally Posted by PLRX
What is that for? I tried looking at it from different angles and squinting my eyes and I can't make it out...I don't see the naked lady or old man's face or whatever it is...



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