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| 05/15/2012 | | Using Synthetic Oil in Flat Tappet Engines | | I am the original owner of a 1971 Oldsmobile 442 W30. I recently completed a complete frame off restoration. The engine (455 cid) was remanufactured by Jasper Engines in their authentic program. I hav... |
| | The Mobil 1™ formulation we offer in a 10W-40 viscosity grade is our High Mileage product. Since your engine has just been rebuilt, this may not be the right selection for you. For your Oldsmobile, we... |
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| 03/10/2012 | | Oil for a Modified 70’s Camaro | | Everyone seems to have an opinion and your chart does not go back to 1970. I just bought a 1970 Camaro highly modified 400 Chevy small block. The owner before me used synthetic but bought what was on ... |
| | For your Camaro, we would recommend Mobil 1™ 15W-50 synthetic motor oil. Mobil 1 15W-50 is a higher viscosity synthetic oil that delivers a thick oil film for protection of high performance engines. ... |
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| 01/05/2012 | | ZDDP Levels of Mobil Delvac | | What are the current ZDDP levels for Mobil Delvac 15W-40? Is it recommended for classic engines with flat tappet camshafts? |
| | Mobil Delvac 1300 Super 15W-40, which meets API CJ-4 performance standards, has a Phosphorus limit of 0.12 wt%. With respect to your question on slider tappets, Mobil Delvac 1300 Super 15W-40 meets C... |
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| 06/12/2007 | | | There have been some concerns voiced by bloggers that the new GF-5 oils which have a reduced ZDDP level to protect catalytic converters have caused problems in high performance race engines with slidi... |
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| 12/07/2006 | | | For older, flat tappet engines where wear may be more of a concern, we offer a number of synthetic oils which are higher in phosphorus than API SN/ILSAC GF-5 oils. These include Mobil 1 15W-50 (1,200... |
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