Unsure if America got the Suzuki Jimmny but it's essentially a little capable off roader with a even littler 1.3 litre 4 pot lump with variable vale timing.
It belongs to my Mother who bought it brand new in 2013 and does a great job of not looking after it.
Engine oil requirements are very basic. Any viscosity from a 0w20 to a 20w50 (little bar chart showing the appropriate temperatures for each grade of oil) that meets API SM which we all know some grades of cooking oil could meet. OCI's are every 4k or 6 months for severe duty or otherwise 9k or 12 months. My Mother is a typical 'servere duty' driver doing lots of slow speed town stop/start driving where the engine never really gets up to temperature. To add insult to injury my Mother doesn't perform any maintenance unless the car stops running. It's lucky to get an oil change every 18 months, usually about 15k which is why I run Castrol Edge 0w30 A5/B5 and not some cheap dino oil.
However, I'm unsure about the lubricants for the gearbox/transfer and diffs. When the car was about a year oil I changed out all the fluids as per the manufacturers recommendation. I used mineral oils from my local Motor Factors that met the appropriate specification. The book suggests the following...
Gearbox & Transfer Box - 75w90 GL-4
Differentials - 80w90 GL-5
These oils are now coming up to 4 years old and done around 40k. I imagine they are way past their best.
As the car is so poorly maintained I'm looking to use Synthetics throughout hoping that they hold up better for whatever duration they are in.
I cannot find a fully synthetic 80w90 in the UK that meets GL-5 for the differentials.
Castrol in the UK at least produce a fully synthetic 75w90 gear oil that meets GL-4 and GL-5. It's an oil I would gladly pick for the gearbox, but am I likely to run into any issues if I was to run it in the diffs too?
Any other advice welcomed. My Mother is going to be driving my Son around in it when he's born in May so I may have to start being more strict about the maintenance on it.
It belongs to my Mother who bought it brand new in 2013 and does a great job of not looking after it.
Engine oil requirements are very basic. Any viscosity from a 0w20 to a 20w50 (little bar chart showing the appropriate temperatures for each grade of oil) that meets API SM which we all know some grades of cooking oil could meet. OCI's are every 4k or 6 months for severe duty or otherwise 9k or 12 months. My Mother is a typical 'servere duty' driver doing lots of slow speed town stop/start driving where the engine never really gets up to temperature. To add insult to injury my Mother doesn't perform any maintenance unless the car stops running. It's lucky to get an oil change every 18 months, usually about 15k which is why I run Castrol Edge 0w30 A5/B5 and not some cheap dino oil.
However, I'm unsure about the lubricants for the gearbox/transfer and diffs. When the car was about a year oil I changed out all the fluids as per the manufacturers recommendation. I used mineral oils from my local Motor Factors that met the appropriate specification. The book suggests the following...
Gearbox & Transfer Box - 75w90 GL-4
Differentials - 80w90 GL-5
These oils are now coming up to 4 years old and done around 40k. I imagine they are way past their best.
As the car is so poorly maintained I'm looking to use Synthetics throughout hoping that they hold up better for whatever duration they are in.
I cannot find a fully synthetic 80w90 in the UK that meets GL-5 for the differentials.
Castrol in the UK at least produce a fully synthetic 75w90 gear oil that meets GL-4 and GL-5. It's an oil I would gladly pick for the gearbox, but am I likely to run into any issues if I was to run it in the diffs too?
Any other advice welcomed. My Mother is going to be driving my Son around in it when he's born in May so I may have to start being more strict about the maintenance on it.
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