jwis250 Posted October 16, 2010 Share Posted October 16, 2010 The IS250 has a motor oil capacity of 6.7 quarts, would it be okay to just use 7 quarts? My problem is measuring of the 0.7 quarts and saving the remaining 0.3 quarts every time I changed the oil. Will it harm the engine if I use 7 quarts? Thanks Quote Link to comment Share on other sites More sharing options...
F14Scott Posted October 21, 2010 Share Posted October 21, 2010 The likelihood of 0.3 extra quarts of oil in the crankcase and sump doing any damage to your car is extremely low. In 25 years and a couple dozen cars and motorcycles, I've rounded up to the nearest quart and never had a problem. Large quantities of extra oil (like two or more extra quarts) can push past the rings and/or froth, but a few extra ounces won't hurt you. Quote Link to comment Share on other sites More sharing options...
jwis250 Posted October 21, 2010 Author Share Posted October 21, 2010 The likelihood of 0.3 extra quarts of oil in the crankcase and sump doing any damage to your car is extremely low. In 25 years and a couple dozen cars and motorcycles, I've rounded up to the nearest quart and never had a problem. Large quantities of extra oil (like two or more extra quarts) can push past the rings and/or froth, but a few extra ounces won't hurt you. Thank you! Next time I'll just pour in 7 quarts. Quote Link to comment Share on other sites More sharing options...
Old school Posted October 21, 2010 Share Posted October 21, 2010 The IS250 has a motor oil capacity of 6.7 quarts, would it be okay to just use 7 quarts? My problem is measuring of the 0.7 quarts and saving the remaining 0.3 quarts every time I changed the oil. Will it harm the engine if I use 7 quarts? Thanks Quote Link to comment Share on other sites More sharing options...
Old school Posted October 21, 2010 Share Posted October 21, 2010 I've been putting 6.5 quarts at each change. This will bring it to the full mark exactly. Don't over fill. If you are using quart bottles they should be marked. If you are using bulk, go to Walmart and get a cheap glass measuring cup. Quote Link to comment Share on other sites More sharing options...
jwis250 Posted October 22, 2010 Author Share Posted October 22, 2010 I've been putting 6.5 quarts at each change. This will bring it to the full mark exactly. Don't over fill. If you are using quart bottles they should be marked. If you are using bulk, go to Walmart and get a cheap glass measuring cup. Thanks for the suggestion, 6.5 quarts is a good round number. I can save the half quart for the next oil change. Quote Link to comment Share on other sites More sharing options...
Ramon Bo Posted January 18, 2021 Share Posted January 18, 2021 On 10/15/2010 at 11:38 PM, jwis250 said: The IS250 has a motor oil capacity of 6.7 quarts, would it be okay to just use 7 quarts? My problem is measuring of the 0.7 quarts and saving the remaining 0.3 quarts every time I changed the oil. Will it harm the engine if I use 7 quarts? Thanks I did the same thing I put 7 quarts of recommended oil types & weight. I run it for while to see if it will level up, and the level right now is same right on top the dot. Bad or it’s Ok? Quote Link to comment Share on other sites More sharing options...
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