New member asking about old cars

Joined
Jul 17, 2009
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WI
I just registered last night so I might be asking the wrong question in the wrong place... so sorry if that is the case. I have four used Toyotas-- 1999 Corolla, 2000 Corolla, 2000 Camry, 2001 Camry-- Have always used Castrol 20-50 in summer and 5-30 in winter (Wisconsin) since I bought each car. Faithfully change at 3000 miles---- Should I switch to Mobil 1 0W-40 or similar or is that a waste of money?
 
Joined
Apr 30, 2003
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Ontario, Canada
It is a waste of money to use 20w50 in summer even if you can get it for free. If the Camry is a V6, though, synthetic would be a good idea.
 
Joined
Jul 3, 2005
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NY
I'd pass on the 20W50 as well, I'd probably run a 5W30 synthetic, and extend the OCI to 5000 miles.
 
Joined
Aug 21, 2008
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ON, Canada eh?
 Originally Posted By: DaveSeemuth
I just registered last night so I might be asking the wrong question in the wrong place... so sorry if that is the case. I have four used Toyotas-- 1999 Corolla, 2000 Corolla, 2000 Camry, 2001 Camry-- Have always used Castrol 20-50 in summer and 5-30 in winter (Wisconsin) since I bought each car. Faithfully change at 3000 miles---- Should I switch to Mobil 1 0W-40 or similar or is that a waste of money?
I posted an answer in the other thread that you posted this question in.
 
Joined
Sep 24, 2007
Messages
466
Location
Coconut Creek Fla
 Originally Posted By: DaveSeemuth
I just registered last night so I might be asking the wrong question in the wrong place... so sorry if that is the case. I have four used Toyotas-- 1999 Corolla, 2000 Corolla, 2000 Camry, 2001 Camry-- Have always used Castrol 20-50 in summer and 5-30 in winter (Wisconsin) since I bought each car. Faithfully change at 3000 miles---- Should I switch to Mobil 1 0W-40 or similar or is that a waste of money?
IMHO you need one oil, 5w30 year round maybe a syn 5w30 in winter! Why are drowning those 4cly's in 20w50 you just don't get hot enough there to warrant using 20w50! Joe
 
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Sep 20, 2008
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242
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Indiana
You should look into valvoline maxlife in 5w30, It's semi-synthetic and should be all you need! And to BITOG!
 
Joined
Sep 8, 2005
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Canada
Yeah....'thicker is better' is NOT a true mantra! 5W-30 year-round will work best in all - keep intervals to 5k miles, and all will be well.
 
Joined
Sep 5, 2006
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19,479
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Chicago Area
You will love the newfound pep and a bit better gas mileage with a lighter oil. 20-50 is too thick even in summer for a modern engine.
 
Joined
Mar 16, 2009
Messages
131
Location
texas
What these guys say about 20w-50 is really true. My oil pressure was off the guage at times and I noticed a pretty big (for oil) difference in power going from 5w-30 to 20w-50 in a bad way. And this is an an old loose 350, not a tight modern engine. I thought it would help oil burning a little but only the Mobil 1 hm has done that for me. And I still need valve seals.
 
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