I just replaced my primary and secondary fuel filters. The difference in performance now is amazing, no more surging above 70 or going up 6% grades. The only concern I have is that I replaced the spin-on with a NAPA, which is what was on there before. Should I have used an OEM filter such a Hengst or MANN? How do these filters work anyway? Do some allow greater fuel flow?

Hengst, Mann, Bosch, it's all good. I like to switch it up everytime I change them just for the hell of it.

Alex

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1983 300D (parked for four years)
2012 VW Sportwagen TDI Manual
2001 Miata SE
1962 Chevrolet Corvair Rampside

Greetings,

I'd say the filtration from one to the next is probably the same as they follow a given spen for diesel filtration when they design the filter. Napa isn't the original manufacturer of their filter anyway. I'd say that if you look at Fastlane that their filter was probably cheaper, whether you go with Mann's or Hengst. Order up on oil filters and other consumables to keep shipping down. Besides, it also helps support this site.

Charles

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"Tell me and I will listen, Teach me and I will learn, Show me and I will accomplish, Involve me and I will succeed."
'84 300SD 256,000 Gold on Brown (Mileage Award)
'86 300E 246,000 Blue on Tan

FWIW

Napa filters are most likely made by WIX. WIX is the best american manufacturer by far and you should be just fine with any NAPA filter.

I agree with Charles that you should purchase stuff from Fast Lane to help support this amazing site.

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Ed
1981 300CD (Benzina)
1968 250 S (Gina) 266,000 miles!
1983 Alfa Romeo GTV6 (Guido)
1976 Jaguar XJS-saved a V-12 from the chevy curse, what a great engine!
1988 Cadillac Eldorado (better car than you might think!)
1988 Yamaha Venture (better than a Wing!)
1977 Suzuki GS750B
1976 Yamaha XS 650 (sold)
1991 Suzuki GSX1100G (Shafty Gixser)
1981 Yamaha VX920RH (Euro "Virago")
Solex Moped
1975 Dodge P/U camper


"Time spent in the company of a cat, a beer, and this forum, is not time wasted!"

BTW how much did that NAPA filter run you?

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member

It was about 10 bucks.

I found, even after the exchange rate, the filters from Fastlane were a good deal. Although, I didn't have to pay duty at the border as I had a friend bring them back to Canada for me. As TXBill suggested, I too was also impressed by the quality & packaging of the Mann products.

Aivars