SaNdS2014 Posted June 18, 2014 Report Share Posted June 18, 2014 I live in Northern Ontario, Canada and I will normally use the specified oil type 10w30 oil. However, many years of talking with many people and garages no one can give me a solid answer. I have always thought in the northern Ontario cold winters it would be a good idea to change the engine oil to 5w 30 for a thinner engine oil for better starting. Does anyone have an answer here for this question? Quote Link to comment Share on other sites More sharing options...
jkeaton Posted June 18, 2014 Report Share Posted June 18, 2014 (edited) I use 5w-30, which is what I believe the owners manual calls for. There is a temperature chart which shows which oil is best suited for different temperature ranges in the owners manual. IMO, 10W-30 is too thick for todays tight engine tolerances. I only use 10W-30 on my older, high mileage vehicles. Welcome to the forum! Edit: I use 5W-30, not 5W-20. Edited June 18, 2014 by jkeaton Quote Link to comment Share on other sites More sharing options...
Lobitz68 Posted June 18, 2014 Report Share Posted June 18, 2014 I use 5w-20, which is what I believe the owners manual calls for. There is a temperature chart which shows which oil is best suited for different temperature ranges in the owners manual. IMO, 10W-30 is too thick for todays tight engine tolerances. I only use 10W-30 on my older, high mileage vehicles. Welcome to the forum! Agreed. Does the 3.5l have different requirements? As stated above, your owners manual should tell you what to use for your climate. I always stick to whatever the manual says to avoid warranty issues. Quote Link to comment Share on other sites More sharing options...
larryl Posted June 18, 2014 Report Share Posted June 18, 2014 I think the 3.5 req's 10w30 my 09 RT did Quote Link to comment Share on other sites More sharing options...
SaNdS2014 Posted June 19, 2014 Author Report Share Posted June 19, 2014 It says 10w30 on the cap. So really this means yes go to 5w30 but just stay there instead of switching from 5w30 to 10w30 for the summer? Thx for info so far people greatly appreciated. Quote Link to comment Share on other sites More sharing options...
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