VW Jetta TDI
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Joined: Jun 2010
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VW Jetta TDI
Based on the examples, I am not really sure on how to answer to weave a logical thread and nexus. I am also not sure on what you disagree with, even as I can understand some of the frustration of dealing with known (gasser) sludge producers. I am also unsure how to "handicap" the scenarios, as it were. Gasser with chronic oil cooking issues and I would assume consumption issues vs D2 with ZERO cooking issues and little consumption.
As to the crankcase in a diesel being a very dirty environment compared to gassers, again I am not sure what to say. The sump of the TDI which I have done up to 30,700 miles has a capacity of 4.5 qts/4.2 L. As you might know, it uses a media "cartridge type" filter. It (old filter and engine innards) remains "whistle clean". Evidently, you see fit to run 3,500 miles (synthetic) OCI's to accomplish the same goals on your gasser !! ?? So consequently..., I run D2 product oils 8.77 TIMES greater miles than you to achieve the "same" end. Defacto, I think YOU are saying you think yours (gasser) to be FAR dirtier than ...mine, D2 !! ?? I tend to run gassers 15,000 miles (994,000 miles) and of late 20,000 miles seems pretty good. So as you can see my actions treat GASSERS as the "dirtier" (than D2) if you will. Specifically that is a range of 25% to 54% (cleaner, longer, you know what I mean?) .
While yes logically having a 10+ qt capacity might be nifty and have great utility and for many reasons It does perhaps present a host of interesting spin off consequences. So for example, the utility of higher sump capacity for the VW TDI would mean I could easily double the OCI. In my case, from 30,700 miles to 61,000/62,000 miles. While I know the filter is designed for 50,000 kms (converts to 31,069 miles) AND with I am sure a safety factor (unknown to me) I would probably swag, I would be compelled to change the filter 31,069 miles. Somehow a bypass (2 micron) filter system with 1 qt extra capacity (4.5 to 5.5 qts) might seem a neck and neck option.
As to the crankcase in a diesel being a very dirty environment compared to gassers, again I am not sure what to say. The sump of the TDI which I have done up to 30,700 miles has a capacity of 4.5 qts/4.2 L. As you might know, it uses a media "cartridge type" filter. It (old filter and engine innards) remains "whistle clean". Evidently, you see fit to run 3,500 miles (synthetic) OCI's to accomplish the same goals on your gasser !! ?? So consequently..., I run D2 product oils 8.77 TIMES greater miles than you to achieve the "same" end. Defacto, I think YOU are saying you think yours (gasser) to be FAR dirtier than ...mine, D2 !! ?? I tend to run gassers 15,000 miles (994,000 miles) and of late 20,000 miles seems pretty good. So as you can see my actions treat GASSERS as the "dirtier" (than D2) if you will. Specifically that is a range of 25% to 54% (cleaner, longer, you know what I mean?) .
While yes logically having a 10+ qt capacity might be nifty and have great utility and for many reasons It does perhaps present a host of interesting spin off consequences. So for example, the utility of higher sump capacity for the VW TDI would mean I could easily double the OCI. In my case, from 30,700 miles to 61,000/62,000 miles. While I know the filter is designed for 50,000 kms (converts to 31,069 miles) AND with I am sure a safety factor (unknown to me) I would probably swag, I would be compelled to change the filter 31,069 miles. Somehow a bypass (2 micron) filter system with 1 qt extra capacity (4.5 to 5.5 qts) might seem a neck and neck option.
