Honda antifreeze

[hornetmike]

Is ethylene glycol antifreeze just for motorcycles ?
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87 Honda CG 125 - 97 ER5 - SR 50 -81 Z250- 96 CBR 600 F- 94 GPX600R 88- GPX 400R- 87 GS 125 - 2006 Honda CB600F- 2003 ER5 - Honda CBF 1000 2009 - Honda CBR 600 RR 2011
Current BMW R1200GS 2010

[P.]

No idea... but my car and bike all get the same tesco antifreeze they have always had and ive never had a problem.

[Scotsman37]

From what I've read as long as it's silicate free antifreeze, because ones with it originally were designed for aluminium car engines. Some people if you do a search have stated that their motorcycles have had leaking coolant due to them earlier adding that type of antifreeze as they later found it wasn't compatible with their cooling system.

Tap water maybe treated with chlorine should not be used which is chorosive if added to ethylene glycol solutions, and therefore use de-ionized water instead for concentrated coolant/ant-freeze.

https://www.engineeringtoolbox.com/ethylene-glycol-d_146.html

Here's an example from Halfords

Silicate included

https://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_176849_langId_-1_categoryId_229902

Silicate Free

https://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_219452_langId_-1_categoryId_229902

Here's a site I like buying from for bargains and they give a discount for bike chat forum users!

https://www.opieoils.co.uk/products-for-my-vehicle.aspx?product=motorbike-service-packs&make=honda#results

[DrDonnyBrago]

Ethylene glycol is the sweet tasting toxic part of normal antifreeze.

The bit that Hondas don't like is the silicate content, they are known to eat Honda water pumps.

Modern antifreeze uses organic acids rather than ethylene glycol as the antifreeze. You could probably still find some OAT antifreeze using silicates but the Halfrauds advanced one is ok for bikes and is silicate free.