5W-30 in a 5W-20 / 0W-20 1.8L engine

[zoomie]

Had my first oil change at a GM dealership, will running 5W-30 for for the next 3 months until I get some 5W-20 in have bad affects? Engine has 7K kms.

[lovemyraffe]

Uh-oh, you've opened a can of worms.I've been running 5w-30 in my Vibe. Works for me.

[star_deceiver]

I run Mobil 1 5w-20, but unless you run 20w-50 in -35, you won't have any problems.... Just don't ask too much about Dino/Synthetic Mobil/Amsoil 5w-20/5w-30 because everyone will give a different opinion about how they get 0.005% better fuel mileage by switching to Royal purple vs. Pennzoil platinum!

[zoomie]

How long has 5W-20 or 0W-20 been printed in Vibe's filler cap I wonder?Whats printed on the oil filler cap of an '05 for instance, lovemyraffe?

[zionzr2]

Quote, originally posted by zoomie »How long has 5W-20 or 0W-20 been printed in Vibe's filler cap I wonder?Whats printed on the oil filler cap of an '05 for instance, lovemyraffe?Only since the new '09 generation. Its also important to note its a different 1.8L engine than the previous generation 1.8L

[djb383]

http://www.chrysanindustries.c...2.pdf

[zoomie]

dj I read the TSB but am missing the point.

[djb383]

It's ok to run XW20 in '06 thru '08 'yota's.......like the '09 is using.

[lovemyraffe]

Quote, originally posted by zoomie »Whats printed on the oil filler cap of an '05 for instance, lovemyraffe?Both the cap and the owners manual say 5w-30.

[Ace]

No, there's a difference, my '03 recommends the 5w-30, and I always run that, though for some reason my '09 with the 2.4 asks for the 5w-20. No biggie really, I'll obey what they say.

[trask]

I think some of the reason the 2009 Vibes are using 5w -20 may have something to do with meeting CAFE standards and ( LEV-2 ULEV ) which is suppose to reduce smog and help meet federally-mandated clean air goals.http://www.arb.ca.gov/msprog/l...t.pdf

[petervibe]

Any one in "hot" Florida using heavier weight oil ? I have 72K on my 06. Need to change the oil, was thinking 20-50 Castrol GT. Any reason why I should not ? I have used it in higher perf engines. It may not be right for this little 1.8 ? Thanks, Peter

[MarkM04]

Run what it calls for. Don't run 20w50 for any reason.Think about it, your engine temperature is controlled by it's cooling system and the thermostat rating, so it doesn't really matter what the outside temp is.

[djb383]

This may answer some of the motor oil questions or create even more. http://www.supramania.com/aehaas/

[star_deceiver]

"Hot Florida"??? It was 40C (105F) here yesterday... the Vibe runs fine and the engine temp stays where it's supposed to.

[petervibe]

djb ..... that was an eye opener info, thank you very much, what an education, never too old to learn something new, thanks again,,,, (: (:

[djb383]

I still go back and read different parts from time to time. It's hard to argue with the good Dr.

[star_deceiver]

[QUOTE=djb383]http://www.supramania.com/aehaas][/QUOTE]Well, makes good sense. We'll see what happens when 0w-20 is put into my Vibe!

[djb383]

Most people think that a "cold engine start" is starting the motor after the vehicle has sat all night, then crank it over the next mourning......and that IS definitely a cold engine start. However, the good Dr. takes it a step further and defines a "cold engine start" as starting the engine at ANY temp below normal operating temp, which certainly makes perfect sense. It's a proven fact that most engine wear occurs during a "cold engine start" when the oil is down in the pan............and the least amount of engine wear occurs when the engine is at normal temp and the oil is circulating. And like the Dr. says, flow equals good lubrication, not pressure. Thinner oil starts lubricating quicker due to better flow characteristics.