Liqui Moly 8931 Catalytic-System Cleaner
Catalytic-System Cleaner | LIQUI MOLY
Catalytic-System Cleaner | LIQUI MOLY
Catalytic-System Cleaner | LIQUI MOLY
Catalytic-System Cleaner | LIQUI MOLY
in 7 offers
The lowest price for Liqui Moly 8931 Catalytic-System Cleaner right now is $18.00 at Universal Auto Spares, compared across 6 retailers.
The all-time low was $9.54 on 16 Mar 2026 — today's price is 89% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 14 Sept 2026.
Last updated at 14/09/2026 20:23:42
Catalytic System Cleaner 300mL - LIQUI MOLY
Delivery between 18–22 Sept $6.95
Aditiv za gorivo LIQUI MOLY 8931
LIQUI MOLY 8931 Catalytic-System Cleaner
Delivery between 21–24 Sept $29
LIQUI Moly 8931 Catalytic-System Cleaner, uncoloured
Delivery between 21–24 Sept $29
LIQUI MOLY 8931 Catalytic-System Cleaner
Delivery between 19–23 Sept $41
Fuel Additive Liqui Moly 8931
Delivery $61.88
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Liqui Moly Catalytic-System Cleaner 300ml (8931)
Delivery $8.80
originally posted on allegro.pl
Super
originally posted on ebay.com
This product seems to solve catalytic converters on high-mileage cars by restoring them to their full potential & factory specifications.
originally posted on ebay.com
We tried it and it didnt work check engine light is still on vehicle had to order a new converter
Catalytic System Cleaner 300mL - LIQUI MOLY
Delivery between 18–22 Sept $6.95
Aditiv za gorivo LIQUI MOLY 8931
LIQUI MOLY 8931 Catalytic-System Cleaner
Delivery between 21–24 Sept $29
LIQUI Moly 8931 Catalytic-System Cleaner, uncoloured
Delivery between 21–24 Sept $29
LIQUI MOLY 8931 Catalytic-System Cleaner
Delivery between 19–23 Sept $41
Super
This product seems to solve catalytic converters on high-mileage cars by restoring them to their full potential & factory specifications.
We tried it and it didnt work check engine light is still on vehicle had to order a new converter
Had a engine management light come on intermittently. Which Ive been told is either cat or 1 of 4 sensors. Seems ok early days fingers crossed
A good stuff for your car....clears your exhaust system
It just works. Halved the emissions.
Im very pleased with this product and noticed an engine performance increase in all 3 vehicles. I can highly recommend this product now that Ive used it.
The best product on the market
I don't usually rate additives. I had a P0420 - Catalyst System Efficiency Below Threshold (Bank 1).". When correctly sprayed in to the air intake on fast idle, this cleared up the problem after a fault reset. Previously the fault had been re-appearing within 50 miles - several hundred now and it's not come back.
good product
