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[Z06] anybody use 10-30w in zo6

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Old 02-20-2017, 07:55 PM
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LT1driver
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Default anybody use 10-30w in zo6

synthetic of course, any downside to it over 05-30w?
Old 02-20-2017, 08:02 PM
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2003Evo
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Its a thicker oil which makes it more viscous than the 5w-30.
Old 02-20-2017, 08:21 PM
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Bobtam
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I use Amsoil ZRod 10/30 and oil pressure is much higher when hot than Mobil1 5/30
Old 02-20-2017, 09:07 PM
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79stickshift
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Mobil 1 10w-30 and 7 track days. No issues. I'm in SoCal FWIW.
Old 02-20-2017, 09:13 PM
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switchplanner
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Read somewhere that M1 10-W30 has better all around properties than 5-W30. Can't remember the specifics but sure someone will chime in.
Old 02-20-2017, 10:55 PM
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2003Evo
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If you track your car a lot a more viscous oil helps with absorbing heat and it can protect your engine better. Depending on engine clearances a thicker oil can also rob some power. Honestly with todays oil technology you cant really go wrong with any kind of oil you choose.
Old 02-21-2017, 12:45 AM
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racebum
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Originally Posted by switchplanner
Read somewhere that M1 10-W30 has better all around properties than 5-W30. Can't remember the specifics but sure someone will chime in.
it does

it also is not thicker

it has fewer viscosity modifiers which make it more stable at high heat and under pressure

at operating temp there is no difference between 5-30 and 10-30

5-30 would be preferred if you drive in freezing or under temperatures due to the cold flow starting to become noticeable

Last edited by racebum; 02-21-2017 at 12:46 AM.
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Old 02-21-2017, 06:38 AM
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nullpointer
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I ran 10W30 in western new york and never had any issues.
Old 02-21-2017, 09:24 AM
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Drewster67
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Im currently running 10W30 Full Synthetic in my LS3
Old 02-21-2017, 12:45 PM
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killian96ss
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No problem running 10W/30 in LS engines. I personally like Mobil One 0W/40. Great cold flow & high temp protection.

Steve
Old 02-21-2017, 03:37 PM
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racebum
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Originally Posted by killian96ss
No problem running 10W/30 in LS engines. I personally like Mobil One 0W/40. Great cold flow & high temp protection.

Steve
actually on sale on amazon now for $27 per 6qt pack if you have prime
Old 02-22-2017, 09:32 AM
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Quickshift_C5
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I run AMSOIL 10W40 and have been for years, as recommended by the AMSOIL rep that's a member here.
Old 02-23-2017, 01:45 AM
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laurent_zo6
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If you don't drive in very cold weather 10W30 is good.
Old 02-23-2017, 09:08 AM
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vinceg
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Originally Posted by killian96ss
No problem running 10W/30 in LS engines. I personally like Mobil One 0W/40. Great cold flow & high temp protection.

Steve
0w/40
Old 02-24-2017, 12:19 PM
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nullpointer
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Originally Posted by vinceg
0w/40
Switching to Castrol 0w-40 Euro formula for my boosted Z06.

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