nelson bunker Posted February 6, 2015 Share Posted February 6, 2015 (edited) Hi everyone. I am borrowing from a family member a Chevy pick up. 2,5L Diesel turbo intercooler. As i am grateful to be able to use this truck which goes really well in spite of his 336000 kms, i am doing some maintenance. Today i bled the engine coolant which was, by the taste of it, plain water. It was clean, only a bit of rust deposit in the expansion tank. Went to the shop, bought some engine coolant(ethylene glycol+corrosion inhibitor), did the 1 for 10 volumes mix and pored it in the radiator. As i was about to start the engine to check for any leaks, the GF showed me a little original Chevrolet sticker on the radiator that says( in Thai): Only water, no anti rust. Bled again and filled with rain water. In Europe, i would always use coolant as it makes the boiling point higher, protects from rust and lubricates the water pump. Tonight i am researching the net about this and cannot find a reason for using water only. Do you TV readers have any idea? This Chevy pick up is the same as the Isuzu Dmax... Edited February 6, 2015 by nelson bunker 2 Link to comment Share on other sites More sharing options...
Popular Post OZEMADE Posted February 6, 2015 Popular Post Share Posted February 6, 2015 (edited) I have never heard of any vehicles these days using plain or rainwater in the radiator. They all use radiator inhibitor fluid to suit the climate in the area the vehicle is driven in. You said you borrowed it from a family member. I presume a Thai and if that is the case, they possibly cant afford the coolant or don't know that is what has to be put in the vehicle. A sticker, (only water, no anti rust.) never seen or heard of such a sticker in my life, doubt Chevy put it on there as it is a 2.5 lit diesel Turbo Intercooled donk. Make doubly sure, take the vehicle to the local Chevy dealership and ask them. Edited February 6, 2015 by OZEMADE 5 Link to comment Share on other sites More sharing options...
nelson bunker Posted February 6, 2015 Author Share Posted February 6, 2015 Thanks for the reply Ozemade. Yes i borrow the truck from the Thai cousin, i thought the same thing as you with the poor maintenance when i tasted water as engine coolant. On the other hand the pick up is going very well with its 3336xx kms which is considered high mileage in Europe. No oil leaks, clean engine, so it must be looked after. We are not used to Chevy in Europe and i am very impressed with this one. Just drove it to Chiang rai and back from Buriram. Again the sticker on the radiator looks very genuine and according to the GF and Google translate it says : Water only, no antirust... I will take it to the shop tomorrow. Link to comment Share on other sites More sharing options...
Popular Post WarpSpeed Posted February 6, 2015 Popular Post Share Posted February 6, 2015 I can't believe you tasted it? You do know that if it had coolant in it it could make you very sick? Coolant is poisonous. Just as easy just to smell it but without the risks, there is no way not to be able to smell coolant if it's present especially warm. It's smell is one of it's attributes like smelling LP for example, you know when you have a leak if you're paying attention and it doesn't take much to smell it? I've never heard of this either and can't think of any reason NOT to use coolant but it is kind of hard to argue with over 300,000 Km and it isn't your truck, so while you're trying to do the right thing it may cause some family politics I'd think about steering clear of, face and all that.. It often ends badly.. 3 Link to comment Share on other sites More sharing options...
Popular Post IMHO Posted February 6, 2015 Popular Post Share Posted February 6, 2015 Can you post a photo of that sticker? I suspect something has gone wrong in the translation. 6 Link to comment Share on other sites More sharing options...
bkkjames Posted February 7, 2015 Share Posted February 7, 2015 i remember in the old days (probably same today) that cats in particular were attracted to coolent / wiper antifreeze because it tasted sweet to them. Never checked it personally, never will cause i like my eyesight. 1 Link to comment Share on other sites More sharing options...
Popular Post cnx355 Posted February 7, 2015 Popular Post Share Posted February 7, 2015 This is from a ISUZU Engine web page as Colorado has Isuzu engne: What oil, fuel, and coolant types are recommended or required for my engine?Refer to your Owner's Instruction Manual for the specific oil, fuel and coolant types for your engine model.The Instruction Manual provides the API grade of oil to use and has an application chart to determine the appropriate viscosity oil to use for ambient temperature. Your engine should not need any additives if you use the recommended oil and change intervals.Your Isuzu engine is designed to use Number 2-D diesel fuel. Number 1-D or a 1-D/2-D diesel blend is permissible for cold temperatures.Use a 50/50 ethylene glycol based Long Life Coolant/distilled water mixture.Use a low silicate or no silicate coolant.Methyl alcohol based coolant is not recommended. http://www.isuzuengines.com/Faqs.aspx#q24 4 Link to comment Share on other sites More sharing options...
Nemesis7 Posted February 7, 2015 Share Posted February 7, 2015 For some strange reason I have also seen few trucks and cars here pouring in water in the radiator as coolant, seemed it's normal thing for those people. Link to comment Share on other sites More sharing options...
Popular Post seedy Posted February 7, 2015 Popular Post Share Posted February 7, 2015 Water is better at heat transfer then ethylene glycol. But has no anti-rust or anti-corrosion protection. That being said, why they recommend distilled water is to keep the PH levels within an acceptable range. With newer HD diesels this is very important, as if levels get too far out of line it eats the liners. 3 Link to comment Share on other sites More sharing options...
pizzachang Posted February 7, 2015 Share Posted February 7, 2015 They may have been referring to "additives" on that sticker. You can probably purchase additive-free glycol at the dealership. Problems with corrosion in the cooling system are usually avoided by regular flushing of the system. 1 Link to comment Share on other sites More sharing options...
WarpSpeed Posted February 7, 2015 Share Posted February 7, 2015 Well I always use a water/coolant mix, not either by itself at full strength. Link to comment Share on other sites More sharing options...
2fishin2 Posted February 7, 2015 Share Posted February 7, 2015 I have never seen nor heard of a vehicle that did not use an antifreeze/radiator fluid mixture vs straight water in a radiator. Straight water has always been a no-no. Usually a 50/50 mixture. The coolant fluid has chemicals that prevent corrosion and has a higher boiling point meaning it can get hotter without boiling over. Straight water....straight wrong. 1 Link to comment Share on other sites More sharing options...
Pomthai Posted February 7, 2015 Share Posted February 7, 2015 (edited) 3.0 Dmax with over 430,000km on it. I've always used coolant additive. Green stuff. As the OP says, it increases the boiling point and therefore might protect the engine for slightly longer if you overheat, at least it'll increase the safe operating temp threshold. I'd be adding coolant to the water you've put it and think of the work you've all ready done as a flush. Edited February 7, 2015 by Pomthai 2 Link to comment Share on other sites More sharing options...
bkkjames Posted February 7, 2015 Share Posted February 7, 2015 I let the guys at nissan do it. (hoping they know what they are doing lol). I drive it. Link to comment Share on other sites More sharing options...
overherebc Posted February 7, 2015 Share Posted February 7, 2015 My take on that sticker is if the level lowers top up with water only, meaning dont add any more anti freeze/rust to top up as you will end up making the mix too strong. It doesnt evaporate as quickly as the water. 1 Link to comment Share on other sites More sharing options...
KonaRain Posted February 7, 2015 Share Posted February 7, 2015 Seedy got it right, diesel is different.Is there a,water lubricant? Also he said tasted it not drink it.. Mechanic's lingo...? I would smell it.. Aloha 1 Link to comment Share on other sites More sharing options...
BudRight Posted February 7, 2015 Share Posted February 7, 2015 Doesn't it take DexCool 50/50? Link to comment Share on other sites More sharing options...
featography Posted February 7, 2015 Share Posted February 7, 2015 i remember in the old days (probably same today) that cats in particular were attracted to coolent / wiper antifreeze because it tasted sweet to them. Never checked it personally, never will cause i like my eyesight. At least 20 yrs ago they changed the formula to eliminate that sweet taste. No longer attracts any animals 1 Link to comment Share on other sites More sharing options...
WarpSpeed Posted February 7, 2015 Share Posted February 7, 2015 i remember in the old days (probably same today) that cats in particular were attracted to coolent / wiper antifreeze because it tasted sweet to them. Never checked it personally, never will cause i like my eyesight. At least 20 yrs ago they changed the formula to eliminate that sweet taste. No longer attracts any animals That's news to me, it's still commonly used as a nuisance cat eliminator here because it both smells and tastes sweet. Link to comment Share on other sites More sharing options...
JeffreyO Posted February 7, 2015 Share Posted February 7, 2015 I skipped past the majority of these comments but water is superior for cooling than coolants or alcohol. The reason most places mix water and coolant is to adjust the boiling and freezing temperatures. Primarily freezing. Coolant requires exceptionally low temperatures (can't remember the exact numbers). This is why coolant is sometimes referred to as anti-freeze. Generally you'll be fine in Thailand under most conditions running straight water but a real coolant/water mix is safer for your vehicle overall. 1 Link to comment Share on other sites More sharing options...
Anthony5 Posted February 7, 2015 Share Posted February 7, 2015 i remember in the old days (probably same today) that cats in particular were attracted to coolent / wiper antifreeze because it tasted sweet to them. Never checked it personally, never will cause i like my eyesight. At least 20 yrs ago they changed the formula to eliminate that sweet taste. No longer attracts any animals That's news to me, it's still commonly used as a nuisance cat eliminator here because it both smells and tastes sweet. http://en.wikipedia.org/wiki/Antifreeze The most common water-based antifreeze solutions used in electronics cooling are mixtures of water and either ethylene glycol (EGW) or propylene glycol (PGW). The use of ethylene glycol has a longer history, especially in the automotive industry. However, EGW solutions formulated for the automotive industry often have silicate based rust inhibitors that can coat and/or clog heat exchanger surfaces. Ethylene glycol is listed as a toxic chemical requiring care in handling and disposal. Ethylene glycol has desirable thermal properties, including a high boiling point, low freezing point, stability over a wide range of temperatures, and high specific heat and thermal conductivity. It also has a low viscosity and, therefore reduced pumping requirements. Although EGW has more desirable physical properties than PGW, the latter coolant is used in applications where toxicity might be a concern. PGW is generally recognized as safe for use in food or food processing applications, and can also be used in enclosed spaces. 1 Link to comment Share on other sites More sharing options...
nelson bunker Posted February 7, 2015 Author Share Posted February 7, 2015 Link to comment Share on other sites More sharing options...
2fishin2 Posted February 7, 2015 Share Posted February 7, 2015 I skipped past the majority of these comments but water is superior for cooling than coolants or alcohol. The reason most places mix water and coolant is to adjust the boiling and freezing temperatures. Primarily freezing. Coolant requires exceptionally low temperatures (can't remember the exact numbers). This is why coolant is sometimes referred to as anti-freeze. Generally you'll be fine in Thailand under most conditions running straight water but a real coolant/water mix is safer for your vehicle overall. Hahahaha I guess your smarter than every car manufacture in the world. Hahahahahahah wow Link to comment Share on other sites More sharing options...
nelson bunker Posted February 7, 2015 Author Share Posted February 7, 2015 Link to comment Share on other sites More sharing options...
nelson bunker Posted February 7, 2015 Author Share Posted February 7, 2015 (edited) Thanks everyone for the replies, i have been struggling transferring the pic to PC. Edited February 7, 2015 by nelson bunker Link to comment Share on other sites More sharing options...
Thaiready Posted February 7, 2015 Share Posted February 7, 2015 i remember in the old days (probably same today) that cats in particular were attracted to coolent / wiper antifreeze because it tasted sweet to them. Never checked it personally, never will cause i like my eyesight. Dogs and Cats like the taste. 1 Link to comment Share on other sites More sharing options...
transam Posted February 7, 2015 Share Posted February 7, 2015 Any engine needs a corrosion inhabiter, especially if it has alloy heads. Link to comment Share on other sites More sharing options...
bkkjames Posted February 7, 2015 Share Posted February 7, 2015 20 years ago. Suddenly feel quite old lol Link to comment Share on other sites More sharing options...
JAS21 Posted February 7, 2015 Share Posted February 7, 2015 That stickerr says exactly what you wife translated to you ...I'd be interested as to what the garage says .... 1 Link to comment Share on other sites More sharing options...
rotary Posted February 7, 2015 Share Posted February 7, 2015 I skipped past the majority of these comments but water is superior for cooling than coolants or alcohol. The reason most places mix water and coolant is to adjust the boiling and freezing temperatures. Primarily freezing. Coolant requires exceptionally low temperatures (can't remember the exact numbers). This is why coolant is sometimes referred to as anti-freeze. Generally you'll be fine in Thailand under most conditions running straight water but a real coolant/water mix is safer for your vehicle overall. I think the coolant also adds some lubrication for the water pump. 2 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now