Long time reader, first time poster so be gentle.
My wife and I will be taking an approximately 5200 mile trip soon in her 2023 VW Taos. This will be the first road trip of any distance for this vehicle as it is normally her gym-mobile, grocery getter, etc..... Close to home filling up with Top Tier gas is not an issue, however when we are on the road we can't always fill up with Top Tier so I was wondering if it would be a good idea to use an additive every other tank or so while on the trip. If we were driving my Toyota I wouldn't be as concerned, but this Taos is a moody gal about fuel, especially 87 octane fuels, so I tend to always go higher octane and try to stick with either Marathon or Shell since it seems to like those brands a bit better. Again though, while traveling I can't always get a Top Tier brand so I thought about doing the additive thing in the Taos for this trip. What are everyone's thoughts on my every other tank additive plan?
As an FYI I have used Techron Complete for years now in all manner of vehicles just before an oil change, so that is likely what I would use on this trip. That said I don't currently have any on hand, and have read good things about both Redline SI-1 and Royal Purple Max Clean so I wanted to get some opinions on those products as well since I might be using something on this trip.
Thanks for your feedback!