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- #41
That is fine and dandy to say and in theory maybe ok. But and there is always a but, it is stated in said manual that if there is engine damage and the correct fuel isn’t/hasn’t been used. Say bye bye to said warranty. I won’t take that risk on an $80,000 vehicle.The engines are, for most purposes, the same, but the software can be different between the two. It would be nice if Toyota came out and said that you could use 87 but the vehicle will only make X power. I haven't seen Toyota do that on an individual model in a long time, though. They effectively do this with the Highlander and RX. Same engine, different software. Highlander makes 265hp on 87 and RX makes 275hp on 91. But they still don't specifically call out that it is OK to run the RX on 87. It is still a little perplexing why the peak numbers are the same between the Tacoma Hybrid and Land Cruiser despite requesting different fuel.
IMO, you can run 87 on a Land Cruiser without it really being detrimental to the vehicle. That's up to each owner's risk tolerance, though.