OK, just to put something out there that I have discovered recently which has me screwed over and I am hoping others don't get in the same boat.
I've serviced my car since new from a reputable diesel mechanic - think of one in NSW and you're likely going to know them. Regardless, they utilise CJ-4 spec (US version of low sulphur/ DPF friendly oil) with 15W-40 oil. The viscosity suits where I go, and is within spec according to the manual... but apparently not.
What a lot of people do not realise (including me, and it looks like my mechanics) is that the Oil has ANOTHER rating attached to it - a C-# rating for sulphur content. There's a PDF here https://www.penriteoil.com.au/assets...ngine_Oils.pdf with all the details. You may be bored to know that no CJ-4 Spec oil has a specification less than C3 (<0.8% sulphur) - which is what the VAST majority (VW, Ford etc) stipulate in their DPF oils.
Not Toyota. They require C2 or better (<0.8% and lower Viscosity HTHS @ 150 ̊Crating). Consequently, Toyota have claimed I have used the wrong oil since day dot in the car, which in turn as rendered the warranty us the proverbial creek. Awesome isn't it? Not too much of a worry for me anymore - it was the last straw and I have now sold it. But having been on here regularly in the past two years or so, I have never come across this aspect of oils (plenty on the viscosity rating) until Toyota told me I was using the wrong oil (using C3, not C2).
So there you go. If you use aftermarket oil - from mineral to synthetic - have a look at your C# rating to ensure it's C2 or better. Else, hide the fact it's not and don't offer work receipts provided by your local trusted mechanic as they'll investigate more into that side of things than investigating on how to fix your car. And for the squealing issues (on another thread) yes, there is a problem and no, it's not related to the oil used (will post when I get the definitive answer from Toyota).
I've serviced my car since new from a reputable diesel mechanic - think of one in NSW and you're likely going to know them. Regardless, they utilise CJ-4 spec (US version of low sulphur/ DPF friendly oil) with 15W-40 oil. The viscosity suits where I go, and is within spec according to the manual... but apparently not.
What a lot of people do not realise (including me, and it looks like my mechanics) is that the Oil has ANOTHER rating attached to it - a C-# rating for sulphur content. There's a PDF here https://www.penriteoil.com.au/assets...ngine_Oils.pdf with all the details. You may be bored to know that no CJ-4 Spec oil has a specification less than C3 (<0.8% sulphur) - which is what the VAST majority (VW, Ford etc) stipulate in their DPF oils.
Not Toyota. They require C2 or better (<0.8% and lower Viscosity HTHS @ 150 ̊Crating). Consequently, Toyota have claimed I have used the wrong oil since day dot in the car, which in turn as rendered the warranty us the proverbial creek. Awesome isn't it? Not too much of a worry for me anymore - it was the last straw and I have now sold it. But having been on here regularly in the past two years or so, I have never come across this aspect of oils (plenty on the viscosity rating) until Toyota told me I was using the wrong oil (using C3, not C2).
So there you go. If you use aftermarket oil - from mineral to synthetic - have a look at your C# rating to ensure it's C2 or better. Else, hide the fact it's not and don't offer work receipts provided by your local trusted mechanic as they'll investigate more into that side of things than investigating on how to fix your car. And for the squealing issues (on another thread) yes, there is a problem and no, it's not related to the oil used (will post when I get the definitive answer from Toyota).
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