Cadillac STS

I have been using TLS for three years now in my Cadillac (4.61 t.s.t V8) with nearly 300,000 km on the clock. TSL has done much good to my engine, it runs much quieter, smoother and is a bit more aggressive. Furthermore, my car runs about 10% more efficient.

The Cadillac is equipped with a Live Oil Index Meter (a test machine that indicates when to change the oil). Before I started using TSL, the machine indicated that I had to change the oil after ± 5000 km, with TSL it is generally after 10 000 km. That is a considerable saving and saves me costs. Furthermore the oil consumption has decreased a lot; The engine used to need 4 liters of oil for every 5000 km. Now it only uses 5000 km on 1 liter. That is a difference of 3 liters. When I change the oil now, it is still pretty clear and clean. Formerly the oil used to be very black when I had to change it. Below I can show you the calculation on the costs TSL has saved me for the past years: 

Calculation of 10,000 km without TSL:
Cost of oil 24 liters: € 384, -
Cost of gasoline in 1250 liter: € 2187, -
Total: € 2571, -

Calculation of 10,000 km with TSL:
Cost of oil 10 liters: € 160, -
Cost of gasoline 1000 liters: € 1750, -
Total: € 1910, -
Using TSL saves me a total of € 661, -.

In short, I am convinced TSL is a good product which earned me my money back twice over.

Berry de Jong from Manchester