5-30 vs 10-30
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,396
Likes: 2
From: North Manchester Indiana
5-30 vs 10-30
my boss, who owns a vast collection ( of Vettes), asked me about switching from 5-30 to 10-30 ....Mobil One. He was told the 10-30 lowered oil consumtion over the 5-30 ...what does the forum think..?
I use 5-30 in my maggied c5,, no issues. but, in my other cars I use 15-50 mobil one. ( hot rods,,,,older motors. )
lets hear your comments about the differences.
FWIW,,, I am considering changing to germnan castrol, as I used GTX for years and liked it very much....
please, this is for oil consumpion only,,,,,not brand pref....
I use 5-30 in my maggied c5,, no issues. but, in my other cars I use 15-50 mobil one. ( hot rods,,,,older motors. )
lets hear your comments about the differences.
FWIW,,, I am considering changing to germnan castrol, as I used GTX for years and liked it very much....
please, this is for oil consumpion only,,,,,not brand pref....
Last edited by wrustywrench; May 26, 2009 at 07:51 AM.
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I use Mobil 1 5W 30 in my 02. The 10W30 won't make any difference if there is an oil consumption problem.
I use Rotella 15W 40 in my old Vettes with flat tappet motors.
I use Rotella 15W 40 in my old Vettes with flat tappet motors.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
High temperature viscosity is about the same for both, and near a 20 weight. I don't use Mobil-1 for that reason plus I don't like the way it coats the engine internals with a brown layer. After a lot of research I have been using the German Castrol 0W-30 and have checked the results with used oil analysis by Terry Dyson. The German Castrol results have been better than those with the Mobil-1 and I think I have made the right move. I have also had the motor open a couple of times and it is as clean as the day it was built. I would vote "neither" in this case.
Drifting
Joined: Jan 2008
Posts: 1,722
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From: Florida
St. Jude Donor '09
The 10W30 high milage is a different formulation than the regular 10W30. It's SAE SL rated and it's viscosity at 100 deg C and HT/HS vis at 150 deg C are almost in the 40W range, read the product data sheets and MSDS on Exxon/Mobil's web page.
According to Mobil's product data, this blend is specific for engines with high oil consumption. In my case it did make a difference. I used to have to add at least 1/2 quart of oil after an autocross event. At last month's event I ran 14 runs and did not add any oil after the event.
According to Mobil's product data, this blend is specific for engines with high oil consumption. In my case it did make a difference. I used to have to add at least 1/2 quart of oil after an autocross event. At last month's event I ran 14 runs and did not add any oil after the event.
Last edited by ipuig; May 26, 2009 at 07:59 AM.
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,396
Likes: 2
From: North Manchester Indiana
The 10W30 high milage is a different formulation than the regular 10W30. It's SAE SL rated and it's viscosity at 100 deg C and HT/HS vis at 150 deg C are almost in the 40W range, read the product data sheets and MSDS on Exxon/Mobil's web page.
According to Mobil's product data, this blend is specific for engines with high oil consumption. In my case it did make a difference. I used to have to add at least 1/2 quart of oil after an autocross event. At last month's event I ran 14 runs and did not add any oil after the event.
According to Mobil's product data, this blend is specific for engines with high oil consumption. In my case it did make a difference. I used to have to add at least 1/2 quart of oil after an autocross event. At last month's event I ran 14 runs and did not add any oil after the event.
good info,,,,nice to know. I did peep the MSDS,,,,
In my case, the cars I am dealing with are only driven a few hundred miles a year.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
The 10W30 high milage is a different formulation than the regular 10W30. It's SAE SL rated and it's viscosity at 100 deg C and HT/HS vis at 150 deg C are almost in the 40W range, read the product data sheets and MSDS on Exxon/Mobil's web page.
According to Mobil's product data, this blend is specific for engines with high oil consumption. In my case it did make a difference. I used to have to add at least 1/2 quart of oil after an autocross event. At last month's event I ran 14 runs and did not add any oil after the event.
According to Mobil's product data, this blend is specific for engines with high oil consumption. In my case it did make a difference. I used to have to add at least 1/2 quart of oil after an autocross event. At last month's event I ran 14 runs and did not add any oil after the event.
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