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Re: Dual vs. Single Oil Filters (Which is better)
In message <Pine.GHP.firstname.lastname@example.org> Todd Phenneger writes:
> Anyhow, Audi Turbo Motors. KH/WX/ WR??? had dual oil filters.
> Turbo had its own separate unit. Newer MC (MB??) have only one filter.
> WHich is better. I am probably putting an MC into either my ur-q or my
> 4ktq and I'm wondering if the MC should keep its Single filter or if I
> should Back Date to the Dual Setup.
Yes, WR had two filters. MC/MB/1B had a single filter. The delta is
probably because of the introduction of hydraulic lifters and the need
to keep the oil galleries filled with the engine off. I would suggest
that an engine with hydraulic lifters should retain the single filter
with anti-drainback valve. If you're determined to go with two (and I
can see no benefit in competition, since you change the filters much
more often anyway) I would suggest you review the effect the change
has on the retention of oil in the hydraulic lifter oil supply.
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