Originally Posted by richonline
My 01' RX300 recently had the same RMS after I changed rom Toyota Oil to Valveonline Coventional. AutoRX did not help much after one bottle use. Do you think the change of Oil Brand could be the cause of this leak?
Would also appreciate the helpful tips from all experts here. Thanks a lot.
I am not sure what you mean by Toyota Oil. We are talking about engine oil here .. right?
I have never tried an additive ... there are members who speak highly of autoRX .. and I hear it works slowly ... so please follow manufacturer's instructions.
My questions are generally to find what caused the problem? If it did not leak before than barring the last bit of wear, going back to the same oil (brand and weight) should stop the leak (if it is oil related).
Other than the additive, you can switch to higher weight of oil (but please stay within the weight based on your climate variation).