- Joined
- Jul 10, 2023
- Messages
- 7
Good day everyone, I have just recently taken a UOA sample of my petrol driven 2.7liter Land Cruiser Prado (Singapore Registered Vehicle) something equivalent to the Lexus GX460 in USA, with 60000km on the ODO, the Redline 0W-30 oil was used for 2 OCI (10000km OCI and sample taken on the last OCI to ensure no cross contaminant from oil supplied by dealer), and previously it was running on unknown oil by the dealer providing free servicing, since the change to Redline the engine felt more responsive, since this sample was taken, I have switched the Redline oil to 5w-20 as per instructed in the owners manual.
My vehicle is a daily driver which occasionally sees long distance overlanding duties from Singapore to Thailand in hilly condition, fully loaded in our humid and hot climate where the avg temp here is 34Deg C upwards. I`m generally pretty light footed, but when overlanding the vehicle does feel the strain of the load due to its small engine capacity and is noticed the vehicle revs pretty high to keep the speed up when going uphill.
The vehicle has totally stock engine, genuine air filter (10000km old), genuine engine oil filter (Replaced every 10000km) and spark plugs in them (Yet to replace) and the only "upgrade" is a Hayden 679 Gearbox oil cooler and changing to Redline 0W-30 oil. I also have a Scanguage installed to monitor my Coolant temp (Avg 83deg C and max I noticed was 92deg C), Gearbox temp (Avg 68deg C and max I noticed was 89deg C).
As there is a company providing a UOA testing (SGS Singapore) I`ve decided to send my UOA to them.
I`m kinda happy with the result that came back on the 0W-30, and keen to see the UOA results on the 5W-20 in time to come. Base on the result, the oxidation is kinda high, but need your kind counsel on any issues I might need to keep my eyes on.
1) How long more can I run the oil to nearly fully utilize the engine oil without sacrificing protection vs performance
2) What can I do to address the oxidation issue or its not something to be concerned about?
3) Any other advise.
My vehicle is a daily driver which occasionally sees long distance overlanding duties from Singapore to Thailand in hilly condition, fully loaded in our humid and hot climate where the avg temp here is 34Deg C upwards. I`m generally pretty light footed, but when overlanding the vehicle does feel the strain of the load due to its small engine capacity and is noticed the vehicle revs pretty high to keep the speed up when going uphill.
The vehicle has totally stock engine, genuine air filter (10000km old), genuine engine oil filter (Replaced every 10000km) and spark plugs in them (Yet to replace) and the only "upgrade" is a Hayden 679 Gearbox oil cooler and changing to Redline 0W-30 oil. I also have a Scanguage installed to monitor my Coolant temp (Avg 83deg C and max I noticed was 92deg C), Gearbox temp (Avg 68deg C and max I noticed was 89deg C).
As there is a company providing a UOA testing (SGS Singapore) I`ve decided to send my UOA to them.
I`m kinda happy with the result that came back on the 0W-30, and keen to see the UOA results on the 5W-20 in time to come. Base on the result, the oxidation is kinda high, but need your kind counsel on any issues I might need to keep my eyes on.
1) How long more can I run the oil to nearly fully utilize the engine oil without sacrificing protection vs performance
2) What can I do to address the oxidation issue or its not something to be concerned about?
3) Any other advise.
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