SR5, I agree with you , but there are some CAFE coolaid consumers around who still think engines can't operate without 0W20.
When is it safe to move?
- Thread starter Espada
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Imo 10w-40 would be a much better choice.
That would make a hugh mess on a ohc engine. But I did that experiment on my old chrysler 318. I just tool the cap off and remote started it around 35f°. Took maybe 3 seconds to see it pumping through the pushrod. That was with Kendall 20w50. However when I would rev the engine cold it would make a whining noise until it warmed up.
When is it safe to move? I'd say by the time you buckle your seat belt after firing up the engine. As long as there is oil pressure you're "good to go." "Good to go" as in driving easy/normally, vs. beating the snot out of a cold engine. Some people seem to think you can hammer the gas as soon as you turn the key.
I tend to play it safe, after starting I wait until the rpms are in the 1,000+/- range. Then I drive, a little slower than normal. I live in an area where there is very little traffic on the side streets and about a mile from the parkway. I can drive nice and easy and not piss anyone off. Once I get to the parkway there's a nice long acceleration ramp, which allows me to get up to highway speed without having to nail it. Most of the time I couldn't nail it even if I wanted to.
I tend to play it safe, after starting I wait until the rpms are in the 1,000+/- range. Then I drive, a little slower than normal. I live in an area where there is very little traffic on the side streets and about a mile from the parkway. I can drive nice and easy and not piss anyone off. Once I get to the parkway there's a nice long acceleration ramp, which allows me to get up to highway speed without having to nail it. Most of the time I couldn't nail it even if I wanted to.
As others have said 30s assuming your climate doesn’t dip down super low. Off topic but do you guys get 20w50 in full synthetic? I live in a similar climate but in the USA and it’s almost impossible to find 20w50 let alone in a full synthetic. Oddly enough Castrol seems to only recommend 20w50 for my engines when I spoof my location to the UAE and select cars from that region with my engines.
You should be able to get M1 15W50 which is close.
In Australia you can get Penrite 10-Tenths Racing 15W50 which is 100% PAO and Ester
You are good to go when your oil light goes out or the oil gauge rises. At that point you have oil through the filter and your engine is being oiled. Keep in mind unless the engine has sat for a long, long time there will be some oil film still on the parts. I wouldn't run the engine very hard for the first 5 minutes but sitting and idling is probably a waste of fuel in your environment.
Just my $0.02
Just my $0.02
In colder climates, I wonder also about Automatic Trans. I notice that if I allow a warmup of less than 5 minutes on cold mornings, the engine seems fine, but the tranny shifts quite hard into reverse. Warmups of 5 minutes plus and trans is happier.
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