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  #1  
Old 04-17-2002, 01:25 PM
rwwlaw
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New to 97 S320 and have a few ?'s

When I start the car in the morning and drive I noticed it does not upshift as easy as when the car is warm. I revs to 3,000 instead of the usuall 2,000rpm. I remember my 4Runner doing the same to help warm up the car faster. Is this the same?
Also what grade of oil should I use 20w 50?
Thanks
Ronn
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  #2  
Old 04-17-2002, 04:13 PM
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Join Date: Oct 2001
Location: Vienna, WV
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My 95 S320 is designed to idle fast until the engine warms up a little. It is in the manual. On the subject of oil weight you'll get a lot of opinions, but very few will suggest 20W-50 if the engine is in good shape. Most will suggest 5W-30 to 0W-40. Many will suggest Mobil1 synthetic. That's what I use.
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  #3  
Old 04-17-2002, 07:36 PM
David C Klasse's Avatar
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Yes, the engine revs higher in 2nd gear when coolant temp is below 35 D Celsius (722.6 trans), or if engine revs to 3100 RPM. This is done to warm up the cat faster.
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  #4  
Old 04-17-2002, 08:06 PM
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Join Date: Dec 2001
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Yep, there is an upshift delay valve which delays the shift from 2nd to 3rd, keeping the car at a higher rpm. Lets the catalytic converter to warm up faster to reduce smog emissions.
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  #5  
Old 04-17-2002, 11:06 PM
rwwlaw
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COOL! I used the search feature and it looks like some dealers don't know what they are talking about
Ron
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  #6  
Old 04-19-2002, 11:23 PM
it leaks, its german
 
Join Date: Mar 2002
Location: raleigh nc
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97 140 cars run the 722.6, software driven upshift delay.

I run rotella 15/40 in most 103's and 104's but, it's kinda warm around here 9 months out of the year. Look in the service book, it'll get you on the right path. (unless you have a MM for the car)

Joe
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