That's an expensive bottle of Sea Foam. For $149, I can't imagine they're going to pull anything apart. Labour in most shops is around $100/hr.

 

The BG is what sounded familiar. A Toyota dealership tried to sell me on this: https://www.bgprod.com/catalog/gasoline-fuel-system/bg-throttle-body-intake-cleaner/

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I run a bottle of Techron through the gas every 5k and call it a day. That, coupled with nothing but 93 Shell fuel and I figure all is good.

 

Follow what the manual recommends, and it does not list the cleaning.

 

I believe the Drive-E engines only have direct fuel injection (not sure on the older engines), which are known to get build-up on the valves. This doesn't happen with port injection models as the fuel rinses the back sides of the valves off. And since a direct injection engine is not rinsing the backside of the valves off, it make no difference what kind of gasoline or fuel additive you use.

If your engine is port injected, or a combination of port and direct injected, I would pass on this service. If it's only direct injected, I would strongly consider it, though I'd doubt you'd need it every 15kmi.

BG makes good stuff and is usually worth the price they ask IF it's a service you actually need. This is one I'd probably do.

For $149, they're not taking anything apart, but my guess is they use a machine or that hooks into the intake tract so the cleaner will get on the backsides of the valves. Definitely more than a bottle of Seafoam.