So you're saying have 'definitive proof', i.e. scientific studies backing the statement that sebacate used in Toyota SLL pink is "THE sole" cause of the issues you note? If so, please post links to those studies. I'd be interested in reading an authoritative "independent" study (or studies) proving that to be the case. In the past, I've seen SLL blamed for Toyota water pump weep hole leaks here too. That claim was debunked by another member here proving that not to be the case. As I don't currently own a Toyota, I don't use SLL. But, I'm sure others that do would be interested in seeing proof SLL pink is a problematic AF.If Toyota pink, which uses sebacate as the organic acid wasn’t as “aggressive” as 2-EHA, millions of 1MZ/3MZ/2GR V6s and the UR-series V8s wouldn’t leak coolant from the valley plate or the timing cover/water pump junction.
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