Lextranny

Do you guys use any kind of fuel system cleaner additive? Which one you all recommend that is safe??

Will this stuff mess up the head gasket?

cdnewton

Every 15,000 miles or so, I use Chevron Techron.

TunedRX300

Gumout Regane Complete Fuel System Cleaner, highest % of PEA (30-40%) of all over the counter additives sold over local auto store. PEA the chemical that is proven to remove carbon deposits, same good stuff that Chevron uses but Gumout Regane just has higher % per 12 oz bottle. Autozone periodically has it free after rebate so it is a way better deal than BG44K

Booyah

Really great stuff is right at your toyota dealer--BG44K awesome stuff!!

xfirechief

Been using AMSOILS PI(Preformance Improver) for over 10 years. Put in 1 to 2 oz. per tankfull every other fill or so. Directions on the bottle. Never a problem with injectors or anything else in the fuel system.

Grumpa72

Chevron Techron. In all my cars.

sonyman

Nothing that you add to your gas tank that specifically indicates use as a fuel additive should damage your headgasket. An excellent product that is widely available is Chevron Techron. If you're looking for something a bit more potent, BG44k is one of the strongest fuel system cleaners on the market. It isn't widely available, but your dealership should stock it in the parts department.

mandyfig

I will have to check this out at Autozone! Gumout Regane...who make sthem?

TunedRX300

Shell Oil Product US. The same company that makes Pro-V gasoline.

Lextranny

Have you guys heard anything good or bad about Redline SI-1 Complete Fuel System cleaner?

cdnewton

The oil analysis on my Audi showed an increase in lead/iron after running BG-44K. The next analysis without BG-44K showed normal levels.

Based upon that, I now use Chevron Techron.

RX330inFL

Autozone is running a rebate on Techron at the moment for those interested and with a store nearby.

http://www.autozone.com/images/in_ou...on_0920_07.pdf

johncdoyle

Chevron Techron every 10,000 miles.

kingofire

I have used it and works very well and doesnt elevate the lead levels in my used oil analysis.

To the OP, I just used Gumout Regane because of its good word of mouth testimonials on BITOG and its easy to find it at Walmart. If you use this make sure its in the clear bottle with "Regane" on it. I have heard that the others are too concentrated and leaches lead.

TunedRX300

Redline SI-1 is a great product that supposed to have higher dosage of PEA, the drawback is it is not as widely avaliable. I don't remember CSK or Autozone carry it, perhaps only at Napa Autoparts.
BG44K is strong, and I would not use it unless there is a serious carbon buildup/knocking.
For maintenance, I have used Gumout Regane, Chevron Techron, and STP with Costco gas, my oil analysis does not show any increase of iron or lead either.
https://www.clublexus.com/forums/sho...d.php?t=307275