[fintstone]

Originally Posted by stevej37

Yeah, when I checked in with the car I asked about oil type, and she said full synthetic.
Never told me that some additive was going in also. I was thinking it went in the engine, but Fint saying he saw additive going in the gas tank, makes me think that's what I got also in the gas tank.

I agree that they should mention it at some point...she had the perfect time to do it when I asked about the oil type.

Another guess is they topped off your antifreeze. Anything with 50 50 in the name is often antifreeze. That said, it may have well been an oil supplement.

I went back and looked at my 20K service video and receipts and in addition to the BG Ethanol Fuel System DefenderŽ PN 213 in the gas tank, the Lexus dealer also added BG Advanced Formula Engine Oil Supplement, MOA Extended LifeŽ PN 115 to the oil).

I read the specs on the gas additive and plan to try it in my other car/s.

Screenshots from the video they sent me showing the gas additive are below (the video did not show the oil change/additive):