mixing types of ATF - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kikkegek · 07-30-2011, 05:19 PM

hi guys,

I used to put regular ATF in my TH400, but after the last service the shop put ATF III in it and told me that is just fine.

I want to change the radiator tomorrow. I need to unhook the rad-cooler and I am afraid I will loose ATF in the proces.

I only have ATF in stock. two questions:

1. will I loose any ATF when I onhook the tranny cooler from the rad? or is it ampty when not running? because it is above the tranny?

2. can I put ATF in the tranny that is holding ATF III?

07-30-2011, 05:19 PM	#1
kikkegek Registered User Join Date: Aug 2010 Location: Netherlands, The Hague Posts: 1,518	mixing types of ATF hi guys, I used to put regular ATF in my TH400, but after the last service the shop put ATF III in it and told me that is just fine. I want to change the radiator tomorrow. I need to unhook the rad-cooler and I am afraid I will loose ATF in the proces. I only have ATF in stock. two questions: 1. will I loose any ATF when I onhook the tranny cooler from the rad? or is it ampty when not running? because it is above the tranny? 2. can I put ATF in the tranny that is holding ATF III? __________________ My dreamride / project:1977 GMC C15 Suburban In storage: Monster - 1974 GMC Suburban 25hundred Sold : Chevrolet Suburban K20 Silverado 1986 Guide: real HID projectors for 4x6 headlights link: DIY LED TAILLIGHTS

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