how do i use it ? is it safe for any car ?

I use it in combination with Marvel Mystery oil to make an fuel system cleaner. 5 parts MM to 1 part Heet. Works well in 3 cars I own - 2 Japanese and 1 German made.

Red bottle versus yellow bottle?

I hope 5 years later David was able to find a new job. You can use this in any gasoline or diesel engine. The difference is the ISO (red bottle) contains isopropyl alcohol. The yellow bottle contains methanol. Isopropyl alcohol evaporates faster therefore removing the water faster. Methanol is better at lowering the water's freezing point. They both do both but just different ways.

Can I use these in my Yamaha outboard?

Yes, any motor,engine that runs on gasoline, I used it on a snow blower

Isopropyl vs methanol Heet for removing water, one combine the water so it can be burned out, the other does not. Anybody know which one?

At one point isopropyl was the only one recomended for fuel injected and other engines. I think it has less acidity than ethanol and methanol. It is the only one I keep in stock because it's safe and effective in all engines. I don't have to worry about someone using the wrong one.

ASIN	B000V4HC7Y
Best Sellers Rank	#3,140 in Automotive ( See Top 100 in Automotive ) #20 in Antifreezes & Coolants
Brand	Heet
Customer Reviews	4.7 4.7 out of 5 stars (3,156)
Date First Available	August 17, 2005
Exterior Finish	Plastic
Global Trade Identification Number	00073905282024
Inlet Connection Size	2.2 Inches
Inlet Connection Type	Compression
Is Discontinued By Manufacturer	No
Item Weight	2.4 ounces
Item dimensions L x W x H	8.35 x 3.25 x 2.2 inches
Item model number	770-196
Manufacturer	Gold Eagle Co.
Manufacturer Part Number	770-196
Material	Plastic
Model	770-196
National Stock Number	6850-01-607-0543
Number of Ports	1
Outlet Connection Size	2.2 Inches
Outlet Connection Type	Pour
Product Dimensions	8.35 x 3.25 x 2.2 inches
Special Features	Absorbs 5 times more water than regular gas dryers, Designed for year round use in all 2-cycle and 4-cycle gas and diesel engines, No.1 selling brand of premium gas-line antifreeze, Prevents rust and corrosion, Removes water from fuel system
UPC	073905282024

Heet Iso-HEET Water Remover And Premium Fuel Line Antifreeze + Injector Cleaner Helps Increase Gas Mileage Improves Engine Performance Year Round Performance, 12 fl. oz. (28202) , Red

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