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View Poll Results: Which oil do you use? | |||
Amsoil |
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79 | 22.13% |
Castrol |
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19 | 5.32% |
Champion |
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0 | 0% |
Chevron |
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0 | 0% |
Conoco |
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0 | 0% |
Citgo |
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0 | 0% |
Havoline |
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1 | 0.28% |
Interstate |
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0 | 0% |
Kendall |
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1 | 0.28% |
Lowe |
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0 | 0% |
Marathon |
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0 | 0% |
Mobil 1 |
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224 | 62.75% |
Motorcraft |
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0 | 0% |
National |
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0 | 0% |
PennZoil |
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4 | 1.12% |
Quaker State |
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3 | 0.84% |
Redline |
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10 | 2.80% |
Royal Purple |
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11 | 3.08% |
Valvoline |
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5 | 1.40% |
Voters: 357. You may not vote on this poll |
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Thread Tools | Display Modes |
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#141 |
![]() Join Date: Jan 2010
Location: Mystic CT
Posts: 2,623
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Why is 10w40 so popular?
GM said 10w30. Ya know, they're really smarter than we give them credit for... ![]() |
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#142 | |
Join Date: Feb 2016
Location: Carterville Illinois
Posts: 846
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![]() Quote:
But also, I would think motor oils now are way better than in the early 90s. But this is an endless conversation, I think it boils down to preference, easy of availabilty, price as well. |
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#143 |
![]() Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,148
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#144 |
Join Date: Aug 2014
Location: Montgomery TX
Posts: 263
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__________________
1991 White ZRJuan #1616 Mileage: 56K Sept-14 -- 113k May-18!!! God Damn I Love This Car! |
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#145 |
![]() Join Date: Jul 2005
Location: Basel/Switzerland
Posts: 152
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At the moment I do test the Valvoline VR1 Racing 10w-60 Premium Synthetic Blend Engine Oil. It also has zinc.
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Sam DR.Z/LT5-Performance 1990 #1822 with 383 cui |
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#146 |
![]() Join Date: Aug 2014
Location: Kansas City, MO
Posts: 838
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Make sure to change this often. The racing oil has little to no detergents.
__________________
Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
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#147 |
Join Date: Aug 2014
Location: Montgomery TX
Posts: 263
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I'm thinking about switching to Quaker State ultra, it has the highest wear protection by far
Sent from my Nexus 6 using ZR-1 Net Registry mobile app
__________________
1991 White ZRJuan #1616 Mileage: 56K Sept-14 -- 113k May-18!!! God Damn I Love This Car! |
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#148 |
Join Date: Jul 2016
Location: Norway
Posts: 15
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I have a lot of Kendall GT1 10W30 API SL is there any problem to use this in my 90 ZR1?
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#149 | |
![]() ![]() Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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![]() Quote:
http://www.zr1specialist.com/HAT%20W...5%20Engine.pdf http://www.drivenracingoil.com/news/...-in-motor-oil/
__________________
Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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#150 |
![]() Join Date: Aug 2014
Location: Kansas City, MO
Posts: 838
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http://www.amsoil.com/shop/by-produc...?code=AMOQT-EA
https://www.amazon.com/Mobil-120770-...0+high+mileage What is the thoughts of running 10w-40 in the Corvette vs. the normal 10w-30? I am worried that the thicker oil will cause issues down the road such as oil pressure or seals busting out? Am I just paranoid or what?
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Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
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