Oil for summer
#3
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Read the following:
No. Multi-viscosity oils are designed to adjust their rate of flow (weight) based on outside and inside engine operating temperatures. When you read an oilcan that has a viscosity rating of 5W20 it means that the winter flow rate of the oil is 5 (thinner) than the summer flow rate (thicker). Multi-viscosity oils thicken up in the summer when the temps are hot and oil tends to thin out. When it gets cold they thin out in order to maintain optimum flow rate in all temperatures.
No. Multi-viscosity oils are designed to adjust their rate of flow (weight) based on outside and inside engine operating temperatures. When you read an oilcan that has a viscosity rating of 5W20 it means that the winter flow rate of the oil is 5 (thinner) than the summer flow rate (thicker). Multi-viscosity oils thicken up in the summer when the temps are hot and oil tends to thin out. When it gets cold they thin out in order to maintain optimum flow rate in all temperatures.
#5
Evolved Member
Read the following:
No. Multi-viscosity oils are designed to adjust their rate of flow (weight) based on outside and inside engine operating temperatures. When you read an oilcan that has a viscosity rating of 5W20 it means that the winter flow rate of the oil is 5 (thinner) than the summer flow rate (thicker). Multi-viscosity oils thicken up in the summer when the temps are hot and oil tends to thin out. When it gets cold they thin out in order to maintain optimum flow rate in all temperatures.
No. Multi-viscosity oils are designed to adjust their rate of flow (weight) based on outside and inside engine operating temperatures. When you read an oilcan that has a viscosity rating of 5W20 it means that the winter flow rate of the oil is 5 (thinner) than the summer flow rate (thicker). Multi-viscosity oils thicken up in the summer when the temps are hot and oil tends to thin out. When it gets cold they thin out in order to maintain optimum flow rate in all temperatures.
Mitsubishi recommends 20W-40 weight oil for hot temperatures. Their reasoning is that they do not want owners using oil that contains enough viscosity indexer to produce 10W-40 oil. Viscosity indexer is not oil. However, since 20W-40 oil is about impossible to find on the store shelf, I use 10W-40.
Last edited by barneyb; May 4, 2012 at 03:20 PM.
#7
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No lucky is what you will have if looking of 20W40 oil. One thing I did find while searching the web is that Amsoil makes a 20W40 oil and it contains zero viscosity indexer. The oil, being synthetic, happens to meets the specification without any. The trouble is, it is for natural gas engines. If Amsoil would make this oil with an automotive additive package, there is our summer oil, hint hint.
Last edited by barneyb; May 4, 2012 at 11:22 PM.
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#12
Stay with a good quality synthetic in a 5w-30. With oil technology as advanced as it is today you will we more than safe. Most race teams run 0w-30 in their race engines, granted they are more concerned about HP than longevity. Keep in mind that lighter weight oils flow better at start up and that is where most engine wear occurs. You will also get slightly better gas mileage using 5w over 10w. I have 80,000 on my 04 GRS and it sees redline daily. I use Mobil 1 5w-30 and change every 4000 miles, does not use any oil.
#13
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ive been using mobil 1 10w-30 since ive had the car and i was just curious i know just about everyone has a differnt approach to their car's oil. The 5w-30 makes since to me but idk if i want to go that thin in the summer even though youre prolly right it wouldn't hurt a thing its just a protection plan for me lol
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Since we are on the subject, I thought I would inform you all of this...
Most Advance Auto Parts stores are running a special on Mobil 1 right now. It is around $30 for 5 quarts and a Mobil 1 filter (saves you around $15 or so). I just picked up two oil changes the other day.
ALSO, the store up here clearanced out some Royal Purple in certain weights, 10W40 being one. So I picked up 10 quarts at $5.50 each! I would say I am stocked up for a while
Most Advance Auto Parts stores are running a special on Mobil 1 right now. It is around $30 for 5 quarts and a Mobil 1 filter (saves you around $15 or so). I just picked up two oil changes the other day.
ALSO, the store up here clearanced out some Royal Purple in certain weights, 10W40 being one. So I picked up 10 quarts at $5.50 each! I would say I am stocked up for a while