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Super Moderator
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Join Date: Dec 2002
Location: Acworth, GA
Age: 73
Posts: 4,327
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Super Moderator
Join Date: Dec 2002
Location: Acworth, GA
Age: 73
Posts: 4,327
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They do recommend higher viscosity in older engines. More stable and less likely to leak and burn off. I used to use 10W40 in older engines and I was told for my 92 Honda, the newer engines don't like the higher viscosity. 10W40 is way too high for the 92 engine. My dealer said you should never use it. So, I used 5W30 in the winter and 10W30 in the summer. I still have the Honda, now with 220,000 miles and I decided to stick with 10W30 all the time. It burns around 3/4 quart per oil change and 10W30 helps and I have less burn off.
My 4Runner has 103,000 miles and I will stick with 5W30 for the time being. I would say, if you burn a little oil between your oil change, they you might want to go to 10W30, but if it seems OK, stick with 5W30. And, I would not go with 10W40, unless you engine is on it's last leg and is burning oil by the mile.
So, if they have high mileage 10W30 oil you may want to use it, if they don't stick with normal oil with lower viscosity.
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2001 & 2004 Toyota 4Runner SR5 4X2
Both V6 and both Natural White
"Yeah, I like white and I like 4Runners"
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