Amsoil vs Royal Purple vs synthetic oil

[Skrilla]

Shell Rotella for everything, bikes, trucks, etc.. Pick up a 5gal pail when they are on sale. Love that stuff, and its JASO cert.

[mr2mike]

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My thing is this. When is the last time you heard of Oil Failure being the cause of engine failure? Not loss of pressure, not loss of flow, but oil failure.
Oil is Oil is Oil. Like its been said, whatevers on sale at CT.

Everyone here talkin' like they don't lease their vehicles and hit the remote start and let the engine "warm up" for 30 min.

[J-hop]

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Everyone here talkin' like they don't lease their vehicles and hit the remote start and let the engine "warm up" for 30 min.

Or the good old, I installed a boost controller, cranked the boost, didn’t upgrade the fuel system and mobil1 blew up my engine.

Oil debate 99% of the time degrade to arguments of poor correlations, ignorance and bad anecdotal evidence

[ExtraSlow]

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Everyone here talkin' like they don't lease their vehicles and hit the remote start and let the engine "warm up" for 30 min.

Remote start or gtfo.

[Sentry]

Freshness and correct viscosity is what matters the most, if it's from a reputable brand it's plenty good. If it's black as fuck, change it, I don't care what Amsoil says it's good to. Excluding diesels obviously, those turn oil black in 20km.

Motul 8100 X-Power 10W60 for the M5 changed once a year in the spring, car only ever sees above zero temps. Works out to about 5-6000km
Motul 8100 X-Cess 5W40 for every other car I own changed at approx 8000km.

Not a Motul fanboy, it's just what's cheap and available to me through work.

[Maxt]

I switched my cummins over to synthetic at 450,000 km's. The big difference is the blow by tube has dried right up and you can't smell it standing beside the truck anymore. I found a good deal on the synthetic, buying in bulk so I pay less for it than I did for the regular 15w40. Still changing it at every 10k though like I did before.

[mr2mike]

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Remote start or gtfo.

Won't someone think of the cold children?

[J-hop]

Very timely