“...Filtakleen can assure it's customers that the mere fitment of a Filtakleen system will not invalidate their engine warranty. If a Filtakleen is installed within its coverage period, the engine cover remains valid…“ Cummins Customer Assurance

“...engine warranty would not be invalidated by the use of non DDA parts…“ Detroit Diesel Corporation

“...the fitting of non-Ford equipment does not, of itself, invalidate the normal warranty…” Central Service Operations Ford

“...our warranty would not be invalidated if such a unit was installed…” Warranty Manager Iveco

“...its actual warranty will not invalidate the normal warranty…” Service Engineering Manager Perkins

“...warranty continues to cover incidents due to defects in material or workmanship used in the manufacture of the Caterpillar product…” Engine Product Support Caterpillar

“...experience of Filtakleen has been excellent and oil/filter changes up to 160 000 kms are possible with operational safety…” Fina Oil Co

This selection of engine warranty statements reflects the attitude of every major engine manufacturer.

Since 1979, and many THOUSANDS of Filtakleen's later, we have never had a warranty claim for machine failure.

Filtakleen products have £1 000 000 liability insurance.