Oljefilter - "bra" tillverkare?

[solk]

Jag har för första gången testat ett Boshi oljefilter från Milner Offroad. Är det någon som vet om dessa är försedda med backventil som filtren från Mahle och Toyota? Det är iofs varmt ute nu men jag tycket att oljetrycket kommer några sekunder senare med Boshifiltret jämfört med tidigare filter jag provat. Någon här som testat och upplevt skillnad mellan olika filtertillverkare?

[Klydd]

Jag monterade ett mahle innan vi körde. Det verkar hålla oljan, får oljetryck snabbt.

Boshi skulle jag aldrig våga köra med

 

[Carl]

Har kört Boshi 10.000 mil i min Pickis, L 200, bytt var 1000.e mil både bränsle olje o luft. Handlat på Milner. Hela filterpaketet ca 125 SEK. Har inte haft några problem.

[solk]

OK, ett helt ovetenskapligt test är utfört. Med kall avstängd motor (mer än 8h) från start till fullt oljetryck tog boshi 11,4 sekunder på sig. Toyota originalfilter klarade samma resa på drygt 5 sekunder. Toyotafiltret väger betydligt mer så jag tror inte boshi har backventil. Det blir OEM på filtersidan i fortsättningen.

[Carl]

Kan säkert vara så. Den större vikten borde ju innebära att det är mer massa i OEM filtret.Har själv reagerat på de mkt låga priserna på Boshi filtren

[DaveN]

Some years ago I took a look at this.

 

I cut open a genuine Honda filter, and compared it to 7 or 8 from other manufacturers - Fram, Champion, Halfords (Englands Biltema), Blue Print, and a few others from the local parts shops.

 

The difference was very surprising. The Honda had the thickest, and the most filter material (I had no way of actually checking the quality of the material other than size and feel). It also had good quality viton seals for the anti-drain and over pressure valves which would wok better at low/high temperatures. The filter end plates were metal and well bonded to the filter material.

 

None of the others had viton seals, but cheap nitrile, and in some cases the surface the seal rested on wasn't flat or smooth (spot welds), so they wouldn't seal properly anyway. Some only had half as much filter material, that was very thin. Some had card board end caps with just a little glue holding them in place. One had such a weak spring on the over pressure valve (that didn't seal properly anyway), that 99% of the oil would have probably by-passed the filter element itself.

 

So overall, there was a big difference in the ones I looked at, and none of them came anywhere close to the overall quality of the genuine filter.

 

Whether it makes any difference to the life of the engine or not, who knows. Personally, I'd pay a few extra kronor for the genuine, especially as I only use 1 or 2 a year.