Spark plug Bosch or BERU

I've been using beru rs7 plugs without any issues.

at 100k km, I replaced (all Bosch) Plugs , Coils, starter, battery, voltage regulator (40).

So new Bosch plugs and red-top coils seemed worth the $109. Old spark plugs were pretty crusty, which made me feel better about doing it.

FWIW, if you don't have Bosch, BERU, Bremi, or NGK plugs/coils and have store brand stuff, I stop diagnostic work until you get OE grade stuff put in there. BMW's don't like the Zone/ebay for ignition parts in my experience.

Yeah can go wrong with acdelco. I run Bosch in my 93 4.3

So far we have; Changed to new spark plug wires, distributor cap and rotor and the distributor is not leaking oil, tried two different sets of spark plugs Bosch F6DTC and NGK/RIDIUM BKR6EIX.

I ran them for awhile in my Passat VR6.They did decent.Burned really well actually. I think when I was running them I only got about 23 MPG.

I did not have good experiences with Bosch on another vehicle.

I have solved so many drivability problems taking Bosch plugs out of misfiring engines.

In my experience, Bosch spark plugs are always terrible; fouling out within a month, that kind of thing...