Oil question
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,010
Likes: 12,396
From: NE South Carolina
It's not designed to just cover subjects you care about! A lot that I don't open!
Last edited by JerryU; Dec 23, 2018 at 08:08 AM.
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,080
From: Guelph, Ontario
So even though SRJ's NAPA synthetic is dexos1 certified, I wouldn't trust that oil to keep these engines perfectly clean if you plan on keeping your car for a very long time (150k+) That's why it pays to do some research and find a good oil that has a higher HTHS (3.5+), low NOACK value and lower sulphated ash. For me, I chose the 5w30 version of Mobil 1 ESP Formula (but I'm thinking of switching to Pennzoil Euro L 5w30) I am shooting for 500,000kms or more on my LT1 so that's why I feel my best shot at it is to choose an oil with better specs than your average dexos1 oil.
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,080
From: Guelph, Ontario
Safety Car
Joined: Mar 2018
Posts: 4,754
Likes: 1,650
Yes, I read every single word you wrote. I understood everything you wrote. I stand by my post you cited and would not change a single word. SMH. You don't have a clue.
Instructor
Joined: May 2013
Posts: 157
Likes: 24
From: Simpsonville SC
I became a believer when I switched to Mobile 1 in our boat and saw a 15’ temperature decrease. Our ski boat had a 350 that stared to over heat between ski runs and after changing to Mobile 1 the problem went away and the temperature gauge showed the decrease. Been a believer ever since.
Race Director
Joined: Apr 2017
Posts: 13,602
Likes: 12,865
From: Virginia
Le Mans Master
Joined: Jun 2002
Posts: 6,433
Likes: 3,622
From: Commerce Texas
As I frequently state on this forum I have more than 700,000 miles in Corvettes over the past 30 years this coming January. My C7 has 80K+ miles on it. Prior to going back into Corvettes in 1990 I put 300K miles on Porsches. In the '60s I raced P-cars, MGs, a Corvette ('61), and a few other cars. During the past five years I've put more than 40,000 miles on a Ferrari.
I have never denied that today's lubricants are suprior. I'm simply saying that way too much is made of "what's the best oil" - just stick Mobile 1, or any other complying lubricant into it and be done with it.
I have never denied that today's lubricants are suprior. I'm simply saying that way too much is made of "what's the best oil" - just stick Mobile 1, or any other complying lubricant into it and be done with it.
Safety Car
Joined: Mar 2018
Posts: 4,754
Likes: 1,650
Originally Posted by 4thC4at60
I have never denied that today's lubricants are suprior. I'm simply saying that way too much is made of "what's the best oil" - just stick Mobile 1, or any other complying lubricant into it and be done with it.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Jun 2002
Posts: 6,433
Likes: 3,622
From: Commerce Texas
If you deny Mobil 1 or a Dexos complying "liquid" is indeed a lubricant there isn't much base for attempting communication with you.... interesting that you discard all other qualifying statements...
Le Mans Master
Joined: Oct 2005
Posts: 6,652
Likes: 2,106
From: Left Coast, San Diego
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,080
From: Guelph, Ontario
FWIW, I just noticed that NAPA has a pretty good deal on the dexos2 Valvoline MST 5w30 ($4.99/qt). The dexos2 5w30 is a little bit thicker than Valvoline's other synthetic 5w30 (which is dexos1 gen2) and like all dexos2 oils is a low SAPS oil.
https://www.napaonline.com/en/p/VAR787301
https://www.napaonline.com/en/p/VAR787301
Instructor
Joined: Sep 2011
Posts: 126
Likes: 7
From: Macon Georgia
FWIW, I just noticed that NAPA has a pretty good deal on the dexos2 Valvoline MST 5w30 ($4.99/qt). The dexos2 5w30 is a little bit thicker than Valvoline's other synthetic 5w30 (which is dexos1 gen2) and like all dexos2 oils is a low SAPS oil.
https://www.napaonline.com/en/p/VAR787301
https://www.napaonline.com/en/p/VAR787301
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,080
From: Guelph, Ontario
True, but that name is only used by Mobil 1 products. By nature, all dexos2 oils are low SAPS oils, which make them good for the emissions systems and direct injection, due to their low level of sulfated ash. Plus all dexos2 oils have an HTHS of 3.5 or higher (compared to dexos1 Mobil 1 5w30 which is only 3.1) so they are good for better protection when the oil temps get higher. I'm just offering other alternatives for people that want something similar to M1 0w40 ESP Formula but at a much lower price and available more readily since there are a ton of NAPA locations in the US.
Last edited by Patman; Dec 29, 2018 at 11:25 AM.
Instructor
Joined: Sep 2011
Posts: 126
Likes: 7
From: Macon Georgia
True, but that name is only used by Mobil 1 products. By nature, all dexos2 oils are low SAPS oils, which make them good for the emissions systems and direct injection, due to their low level of sulfated ash. Plus all dexos2 oils have an HTHS of 3.5 or higher (compared to dexos1 Mobil 1 5w30 which is only 3.1) so they are good for better protection when the oil temps get higher. I'm just offering other alternatives for people that want something similar to M1 0w40 ESP Formula but at a much lower price and available more readily since there are a ton of NAPA locations in the US.
Thanks
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,010
Likes: 12,396
From: NE South Carolina
^^^
I’ll stick with what it said to use in my 2017 Grand Sport until Mobil 1 0W-40 ESP sells for about what the 5W-30 that is specified in my Owner’s Manual. I have used Mobil 1 since 1974 when it was a “true synthetic.” Since I change when the OLM says believe that is sufficient. I now buy two 5 quart jugs at Walmart for under $25/jug. I get $24 rebate for the two jugs so ~$2.50/quart. When the dexos2 0W-40 ESP is available for about that price, will switch to it.
I’ll stick with what it said to use in my 2017 Grand Sport until Mobil 1 0W-40 ESP sells for about what the 5W-30 that is specified in my Owner’s Manual. I have used Mobil 1 since 1974 when it was a “true synthetic.” Since I change when the OLM says believe that is sufficient. I now buy two 5 quart jugs at Walmart for under $25/jug. I get $24 rebate for the two jugs so ~$2.50/quart. When the dexos2 0W-40 ESP is available for about that price, will switch to it.Last edited by JerryU; Dec 29, 2018 at 12:24 PM.
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,080
From: Guelph, Ontario
^^^
I’ll stick with what it said to use in my 2017 Grand Sport until Mobil 1 0W-40 ESP sells for about what the 5W-30 that is specified in my Owner’s Manual. I have used Mobil 1 since 1974 when it was a “true synthetic.” Since I change when the OLM says believe that is sufficient. I now buy two 5 quart jugs at Walmart for under $25/jug. I get $24 rebate for the two jugs so ~$2.50/quart. When the dexos2 0W-40 ESP is available for about that price, will switch to it.
I’ll stick with what it said to use in my 2017 Grand Sport until Mobil 1 0W-40 ESP sells for about what the 5W-30 that is specified in my Owner’s Manual. I have used Mobil 1 since 1974 when it was a “true synthetic.” Since I change when the OLM says believe that is sufficient. I now buy two 5 quart jugs at Walmart for under $25/jug. I get $24 rebate for the two jugs so ~$2.50/quart. When the dexos2 0W-40 ESP is available for about that price, will switch to it.Last edited by Patman; Dec 29, 2018 at 03:54 PM.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,010
Likes: 12,396
From: NE South Carolina
Considering you probably only do one oil change a year though, isn't it better to spend even $50-70 more per year for a better oil? Even though I cross over the border a lot and see regular M1 5w30 for $22.88 (5qt jug) all the time, I still have been buying M1 5w30 ESP Formula at $17 per liter up here instead, as I strongly believe that in the long run a dexos2 low SAPS oil like this will keep my LT1 cleaner inside. For people not keeping their C7 much past 100k it might not be an issue, but I'm shooting for 250-300k.
