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Originally Posted By: zeng

Here in Venezuela people uses 20w50 for almost everything, even in engines that "require" thin oil like Corollas, Mazdas and 2012 Silverados. In the best case people uses 15w40

Originally Posted By: Linctex How did you make out on your engine repair? Was the head gasket the only item needed? The head gasket was burnt between cylinders 1 and 2, my 100k miles timing belt had cracks so we bought a timing kit and replaced the camshaft seal and front crankshaft seal...

Is the fact that the center of the spot is clearer than the medium ring a good or a bad thing? Both spots were taken at the same time, I wanted to compare 2 drops vs 1 drop. 288k miles 7AFE Corolla 2500 miles on Oil with 2 qts of Makeup

Originally Posted By: Bryanccfshr Viscosity is a transient value everytime we start the vehicle at ambient temperatures the oil is thicker than operating temperatures and engines run and tolerate this transition just fine as they near operating temps the differences between sae viscosity grades...

Mitsubishi Panel here in Venezuela

Originally Posted By: Rolla07 Yeah if you go through all that trouble may as well just change the oil to be safe.. I will change the oil

Originally Posted By: PeterPolyol Oh a 2001 with a 7A, that's got to be a E110 (old school Corolla like the Geo Prism). We don't have 2001s like that here in Canada. Why didn't you clarify earlier? The serial in the car says it is a AE112, I didn´t clarify earlier because I´m used to 99-02...

I have a 7AFE engine not a 1ZZFE. My first head gasket lasted 250k miles.

I recently posted on this forum that I had a problem of loss of coolant, there wasn´t any leaks and the radiator cap seemed to have been working properly. Coolant expansion tank boiling, many people pointed that my problem could be related to my head gasket. Yesterday my car lost compression...

The main problem isn´t the overflow tank boiling, is the fact that sometimes there are bubbles on the upper radiator hose. I have read a lot and I think that the lack of thermostat isn´t causing this problem nor a head gasket leak, I filled the coolant to the top in the radiator and drove two...

Originally Posted By: zeng How old (in weeks or months) is this 'new' radiator cap ? ...... I mean why and when did you have this 'as is new' cap installed ? - Less than 3 months but I don´t trust this radiator cap, I had to modify it in order to be able to use it, I need a new one. - I...

Originally Posted By: mk378 What has checking the radiator every time it is cold found out? If you're losing coolant out of the radiator, is it going into the expansion tank (and not returning), or simply disappearing? The radiator isn´t full every time I check it, sometimes I have to add 100...

Originally Posted By: PeterPolyol That's good then, but be sure that shutting the heater circuit also shuts off the bypass system- usually systems are designed to bypass regardless of the heater core, because this bypass amount is required to open up the 'inlet side' thermostat which might not...

Originally Posted By: mk378 With no thermostat you should close off both the heater loop and the bypass loop so that all the coolant goes through the radiator. The hose that I put between both ports is the one that feeded the heater, because of the bend this hose is now blocking the flow, so I...

Originally Posted By: zeng Faulty cap not holding up pressure, OP has no overheating as yet. I don´t think this is the problem, I have a new radiator cap

Originally Posted By: mk378 Even with no thermostat, the dash gauge should be going up some off of cold with the car sitting still. The system will heat up until the fan thermostat starts the fan. If the gauge never moves it may be broken or disconnected, and you don't know the actual engine...

Originally Posted By: PimTac A 1999 car with a carburetor. Fiat took their time going to fuel injection. Fiat have been selling fuel injected cars since late 1980s, is Fiat do Brasil the one that took longer to go into fuel injected car. In South America we have 3rd World cars made in Brazil...

Originally Posted By: Silverado12 Originally Posted By: bdcardinal My 2014 Mustang gets 14.9mpg, and that has been with me consistently driving to save gas. I wonder why it does so bad. My wife has a 2010 3 valve and it gets 19-20 with 26 on a road trip. Have you changed the gearing? It has...

Originally Posted By: meep If it's fouling with carbon every three months it's definitely running rich, just not rich enough to bog down. Leaky accelerator pump? Tired float valve? I think that is the problem: the accelerator pump is leaking