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#61 | |
![]() Join Date: Jun 2013
Location: PA
Posts: 875
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If 20-30 bucks difference on an oil change is making or breaking your classic car ownership...well, it might be time to rethink classic car ownership. Plus, the additive I listed is 42 dollars for 6 ounces....just buy the better oil. Here is some amazon oil: https://www.amazon.com/Brad-Penn-Oil...ag=googhydr-20 Last edited by spork2367; 03-08-2019 at 09:44 AM. |
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#62 |
![]() Join Date: Sep 2016
Location: Ocala, FL
Posts: 897
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You have sold me Spork. Brad Penn is the bang for the buck that I am searching for. Thank you for your research and recommendation.
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Steve Young 1991 ZR-1 Quasar Blue Metallic/Black #729 Second Owner 1991 ZR-1 Dark Red Metallic/Black #2040 SOLD 1990 ZR-1 Dark Red Metallic/Saddle #1670 SOLD Double your happiness.....complain half as much. |
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#63 |
Join Date: May 2013
Location: Chicago
Posts: 982
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Why are so many people using 10w - 40 vs 10w - 30 or 5w - 30 motor oil?
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#64 |
![]() Join Date: Sep 2016
Location: Ocala, FL
Posts: 897
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Marc Heibeck recommends it for the additional film strength. A plus because face it no one's driving these cars in the dead of winter. A plus also because the higher film strength stays on the parts better for those of us that only drive them occasionally.
Sent from my iPhone using ZR-1 Net Registry
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Steve Young 1991 ZR-1 Quasar Blue Metallic/Black #729 Second Owner 1991 ZR-1 Dark Red Metallic/Black #2040 SOLD 1990 ZR-1 Dark Red Metallic/Saddle #1670 SOLD Double your happiness.....complain half as much. |
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#65 |
Join Date: May 2013
Location: Chicago
Posts: 982
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I guess so I am familiar with oil weight meanings and such. I drive my Z in the winter when there is no snow and the roads are clear. Except this past/current winter since the heater core broke.
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#66 | |
![]() Join Date: Jun 2013
Location: PA
Posts: 875
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I would not run 10w40 in a Chicago winter. |
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#67 |
Join Date: May 2013
Location: Chicago
Posts: 982
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This is a very good short video from an Amsoil guy explaining zinc and modern engine oil.
https://www.youtube.com/watch?v=LpbVDGT40Rg "boundary lubrication"..."if you don't have enough zinc you will eat the cam".... Good explanation of modern engine oils assuming all cars have roller vs flat tapped cams. |
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#68 |
Join Date: May 2013
Location: Chicago
Posts: 982
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If anyone on here has a GM pickup truck or newer BMW or Mercedes I understand the cars must use 0w20 or 5w20.
Anything above a 20 weight oil will cause the GM cylinder deactivation and cruising speed on the highway to not work/malfunction or operate inefficiently.. And on the BMW and Mercedes general running trouble with the engine. Maybe GM and Lotus suggest staying with a 5w30 or 10w30 for a reason. Food for thought. |
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#69 |
![]() Join Date: Feb 2011
Location: Clayton, North Carolina
Posts: 1,133
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#70 |
![]() Join Date: Aug 2006
Location: McLean, VA
Posts: 3,723
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After 35 years of Mobile 1 starting with 84 Z51 Vette 4+3, I am calling it quits and switching to Amsoil Z-Rod 10W-30.
It's interesting to see that Mobil 1 FS and FS X2, both specific to european cars, still contains 1000 and 1100 phosphate and zinc respectively. Could it be OHCs Mobil is concerned over? |
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